Related references
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Article
Astronomy & Astrophysics
Suvrat Raju
Summary: The split property in ordinary quantum field theory does not hold in theories of gravity, leading to problems such as the information paradox, monogamy paradox, and the Page curve. Nonstandard theories of gravity are used to support these assumptions by computing the Page curve.
CLASSICAL AND QUANTUM GRAVITY
(2022)
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Astronomy & Astrophysics
Dominik Neuenfeld
Summary: This study explores the relationship between a novel entropy formula and semi-classical entropy in the context of doubly-holographic models. It discusses the correct homology constraint for Ryu-Takayanagi surfaces and the possibility of disagreement in the von Neumann entropies of fixed subregions in both descriptions. The research also speculates on the connection between double-holography and black hole complementarity.
CLASSICAL AND QUANTUM GRAVITY
(2022)
Article
Physics, Particles & Fields
Yizhou Lu et al.
Summary: The study applies the newly proposed island formula to investigate the quantum entanglement entropy of spherically symmetric 4-dimensional eternal Kaluza-Klein black holes. It finds that the charge of black holes slightly affects the shape of the island in the late-time region, and successfully reproduces the Page curve for eternal KK black holes.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
Ming-Hui Yu et al.
Summary: The study uses the island paradigm to analyze the Page curve of eternal Garfinkle-Horowitz-Strominger dilaton black holes in four dimensional asymptotically flat spacetime. The results show that the entanglement entropy stops growing in the presence of the island, reaching a saturation value that is consistent with the finiteness of the von Neumann entropy. Additionally, the study investigates the influence of the stringy coefficient and charge on the Page time and the scrambling time.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Review
Physics, Multidisciplinary
Suvrat Raju
Summary: The paper reviews recent progress on the information paradox and explains the resolution proposed by Hawking. It introduces a physical principle applicable in quantum gravity theories, emphasizing the retention of information in the exterior of black holes. Accounting for this redundancy offers a solution to the paradox for evaporating black holes.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Review
Physics, Multidisciplinary
Bowen Chen et al.
Summary: In this paper, we provide a pedagogical review of the application of concepts from quantum information theory and gravitational theory in the anti-de Sitter/conformal field theory correspondence. We introduce various concepts and techniques, and aim to give researchers a working knowledge in this field for initiating original projects.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Physics, Particles & Fields
Christoph F. Uhlemann
Summary: In this paper, holographic duals for CFTs compactified on a twisted Riemann surface Sigma are discussed in the language of wedge holography. The internal space is decomposed in the IR and the corresponding subsystems are geometrized separately, resulting in two interacting gravitational systems. These setups are used to model information transfer and entropy transition in certain cases.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Kazumi Okuyama et al.
Summary: In this study, a toy model is used to investigate the Page curve of an evaporating black hole. It is observed that the entropy first increases and then decreases over time, reproducing the well-known behavior of the Page curve. The system undergoes a phase transition, marking the end of the evaporation. A conjecture about the late-time monotonically decreasing behavior of the entropy is proposed and supported by evidence from a certain limit and the dual matrix model.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Yi Ling et al.
Summary: This paper studies the reflected entropy in holographic setup and introduces the concept of quantum entanglement wedge cross-section. The reflected entropy is numerically computed in AdS background and black hole background.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Tianyi Li et al.
Summary: The defect extremal surface formula, the island formula for reflected entropy, and their equivalence are introduced and studied in this paper. It is found that the defect extremal surface formula agrees with the island formula in AdS spaces with defect branes.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Hao Geng et al.
Summary: This paper investigates the potential problems of islands in standard theories of massless gravity. Islands are entanglement wedges disconnected from the asymptotic region, and in some known examples, the tension with the gravitational law is resolved by the presence of massive gravitons. Additionally, the authors derive some consistency conditions that islands in decoupled systems must satisfy.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Timothy J. Hollowood et al.
Summary: This paper investigates the entanglement entropies of finite spatial intervals in Minkowski radiation baths coupled to the eternal black hole in JT gravity. It also explores the problem related to free fermion BCFT in the thermofield double state. The study shows that the entropy evolution in the black hole problem matches that of the free fermion theory in a high temperature limit, and both exhibit behaviors expected for CFTs with quasiparticle description.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Jaydeep Kumar Basak et al.
Summary: We computed the entanglement negativity in a bath coupled to an evaporating two dimensional non-extremal JT black hole. Our results precisely reproduce the analogues of the entanglement negativity page curve, which were recently determined using diagrammatic technique developed in the context of random matrix theory.
Article
Physics, Multidisciplinary
Debarshi Basu et al.
Summary: This paper presents the holographic constructions for the entanglement negativity of bipartite states in a class of (1+1)-dimensional Galilean conformal field theories. The construction involves specific algebraic sums of the lengths of bulk extremal curves and reproduces the corresponding replica technique results in the large central charge limit. The construction is substantiated through a semiclassical analysis involving the geometric monodromy technique for the case of two disjoint intervals in such holographic Galilean conformal field theories.
Article
Physics, Multidisciplinary
Jaydeep Kumar Basak et al.
Summary: This article presents two alternative proposals for the island contributions to entanglement negativity in quantum field theories coupled to semiclassical gravity. The proposals are verified to be consistent with each other and are potentially related to a doubly holographic picture. The derivation of the first proposal is provided by determining the corresponding replica wormhole contributions.
Article
Physics, Particles & Fields
Ding-fang Zeng
Summary: We provide a hermitian hamiltonian description for the spontaneous radiation of black holes, which is a many-level, multiple-degeneracy generalization of the usual Janeys-Cummings model for two-level atoms. Our model yields a thermal power spectrum as hawking radiation requires under single-particle radiation and standard Wigner-Wiesskopf approximation. In many-particle radiation cases, numeric methods allow us to track the evolution of microscopic state of a black hole exactly, showing an increasing then decreasing entropy variation trend for the radiation particles similar to the Page-curve.
Article
Physics, Particles & Fields
Song He et al.
Summary: In this study, the quantum extremal surface (QES) associated with Hawking radiation for general D-dimensional eternal black holes was systematically calculated using the island formula. It was found that a QES exists in the near-horizon region outside the black hole under certain conditions, and that the late-time radiation entropy saturates twice the black hole entropy. The numerical analysis revealed that there is an upper bound for the no island configuration in two-dimensional generalized dilaton theories when the product of the central charge and Newton constant exceeds a certain value.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Guglielmo Grimaldi et al.
Summary: The study focuses on two-dimensional eternal black holes with non-zero mass, interacting with a CFT on a circle. By computing the Page curve, it is found that the entropy rises linearly at early times and remains constant at late times, depending on the size of the thermal baths. The critical size and Page time are proportional to the ratio of the central charges of the conformal defect and the bath CFT.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Geoff Penington et al.
Summary: Recent work has shown how to obtain the Page curve of an evaporating black hole through holographic computations of entanglement entropy. The validity of these computations is justified using the replica trick and geometries with a spacetime wormhole connecting the different replicas. The Page transition is studied in detail in a simple model by summing replica geometries with different topologies. Related quantities are computed in less detail in more complicated models like JT gravity coupled to conformal matter and the SYK model. Additionally, a direct gravitational argument for entanglement wedge reconstruction is given using the explicit formula known as the Petz map, where the spacetime wormhole plays a significant role. The interpretation of the wormhole geometries as part of some ensemble average implicit in the gravity description is also discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Chris Akers et al.
Summary: This article studied the duality between reflected entropy and the area of the entanglement wedge cross section in random tensor networks. The important non-perturbative effects that smooth out the discontinuity in the reflected entropy across the Page phase transition were analyzed. By summing over these effects, the reflected entanglement spectrum was obtained analytically, consistent with numerical studies. A prescription for the analytic continuation required in computing the reflected entropy and its Renyi generalization was proposed, resolving an order of limits issue previously identified in the literature. The results from hyperbolic tensor networks were found to be consistent with holographic expectations.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Dmitry S. Ageev
Summary: In this paper, the authors investigate the fine structure of entanglement in holographic two-dimensional boundary conformal field theories (BCFT) using the spatially resolved quasilocal extension of entanglement entropy - entanglement contour. They discover that the boundary induces discontinuities in the contour, unveiling hidden localization-delocalization patterns of the entanglement degrees of freedom. Additionally, they observe the formation of islands where the entanglement contour vanishes completely, suggesting that these regions do not contribute to the entanglement. This phenomenon is believed to be the manifestation of entanglement islands discussed in recent literature. The authors also apply the entanglement contour proposal to BCFT black hole models, reproducing the classic Page curve. The Page curve is found to carry the signature of strong delocalization caused by dynamical entanglement islands.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Hao Geng et al.
Summary: In this study, we compute holographic entanglement entropy for subregions of a BCFT thermal state living on a nongravitating black hole background. We find that entanglement islands do not exist when the brane lies below a critical angle at zero temperature, but they do exist at finite temperature in the context of a black string, restricted to a finite connected region on the brane called the atoll. The behavior of entanglement entropy depends on two parameters - the size of the subregion and the brane angle.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Joshua Kames-King et al.
Summary: Investigated the entropy of the de Sitter cosmological horizon, considering an auxiliary system as a heat bath for two observers and studying the time-dependent entropy. Discovered a weakly gravitating region near the past cosmological horizon related to observables at future infinity.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Timothy J. Hollowood et al.
Summary: In this study, we investigate the influence of grey-body factors on the computation of entropy for an arbitrary subset of the Hawking radiation from an evaporating black hole. We find that the grey-body factors allow us to analyze the role of irreversibility in the evaporation process and show that multiple saddle points dominate the entropy. These multiple saddle points can be derived from a generalization of Page's theorem that involves a nested temporal sequence of unitary averages. We also explore how irreversibility affects the monogamy entanglement problem.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Chris Akers et al.
Summary: In this study, we investigate the reflected entropy in the West Coast Model and analyze its properties through holographic duality and important non-perturbative effects. We find that the reflected entanglement spectrum takes a simple form and that fluctuations in area can affect the location of the phase transition.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Xi Dong et al.
Summary: This study investigates the quantum entanglement negativity in two toy models of evaporating black holes and discovers four phases dominated by different geometries, including replica wormholes breaking replica symmetry. The transitions between these phases are analyzed through summing more generic replica geometries using a Schwinger-Dyson equation, revealing enhanced corrections near the transition between the cyclic and pairwise phase.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Kenta Suzuki et al.
Summary: In this paper, we investigate the equivalence between a boundary conformal field theory (BCFT) and a gravitational system by studying its duality relation in a two-dimensional setup. By examining the computation of entanglement entropy and energy flux conservation, we identify the dual two-dimensional gravity to the boundary dynamics of a BCFT. Furthermore, we demonstrate that one point functions can be correctly reproduced in the AdS/BCFT by considering a gravity solution with scalar fields turned on.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Debarshi Basu et al.
Summary: In this paper, we establish a construction for the entanglement wedge in asymptotically flat bulk geometries for subsystems in dual (1 + 1)-dimensional Galilean conformal field theories in the context of flat space holography. We propose a definition for the bulk entanglement wedge cross section for bipartite states of such dual non-relativistic conformal field theories. By utilizing our construction, we compute the entanglement negativity for bipartite states and match it with earlier holographic results.
SCIPOST PHYSICS CORE
(2022)
Article
Physics, Multidisciplinary
Elena Caceres et al.
Summary: In this study, we investigate the black hole information problem in a semiclassical gravitating AdSd black hole coupled to a d-dimensional thermal conformal bath. By deforming the bath state through a relevant scalar deformation, a holographic RG flow is triggered, causing the trans-IR region to transition from a Schwarzschild geometry to a Kasner universe. The setup exhibits two independent scales that control the extent of coarse-graining and the entanglement dynamics when counting Hawking degrees of freedom in the bath. Tuning either scale results in nontrivial changes to the Page time and Page curve.
SCIPOST PHYSICS CORE
(2022)
Article
Astronomy & Astrophysics
Yoshiki Sato
Summary: In this paper, we study the time evolution of the subregion complexity in a two-dimensional conformal field theory with a moving mirror. We find that the subregion complexity shows a peculiar behavior, which is different from the entanglement entropy.
Article
Astronomy & Astrophysics
Debarshi Basu et al.
Summary: We investigate mixed state entanglement measures of entanglement negativity and reflected entropy in bipartite states in two dimensional conformal field theories with an anomaly through appropriate replica techniques. Furthermore, we propose holographic constructions for these measures from the corresponding bulk dual geometries and find exact agreement with the field theory results. In this connection, we extend an earlier holographic proposal for the entanglement negativity to the bulk action with a gravitational Chern-Simons term and compute its contribution to the entanglement wedge cross section dual to the reflected entropy.
Article
Astronomy & Astrophysics
Juan F. Pedraza et al.
Summary: This article introduces the application of the island formula, which obtains the unitary Page curve of Hawking radiation entropy by extremizing generalized entropy. The article derives the application of this formula in different gravity theories through different methods.
Article
Astronomy & Astrophysics
Raphael Bousso et al.
Summary: In cosmology, spatial curvature has a significant impact on the existence of entanglement islands. Positive curvature guarantees the entire universe to be an island, while subsets of the time-symmetric slice of closed or open universes can also be islands under the condition of negative and sufficiently large cosmological constant.
Article
Physics, Particles & Fields
Ashis Saha et al.
Summary: This paper explores the role of mutual information between subsystems on the Page curve. By considering the total system including the island, it is observed that the vanishing of mutual information between B+ and B- results in a time independent expression for the fine grained entropy of Hawking radiation, consistent with the correct Page curve. Corrections to this entropy and Page time in logarithmic and inverse power law forms are also identified.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Review
Physics, Particles & Fields
Tanay Kibe et al.
Summary: This article reviews the progress in our understanding of bulk spacetime reconstruction in holographic correspondence, and how it reproduces the Page curve of Hawking radiation from black holes. It discusses quantum error correction and recovery maps using toy examples based on tensor networks, resolving apparent inconsistencies with operator algebra in the dual field theory. The article emphasizes the importance of understanding the modular flow in the dual field theory and formulating the state-dependence of black hole microstate reconstruction. It also introduces tractable microstate models of black holes to shed light on the complementarity principle and encoding features into Hawking radiation.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
Cao H. Nam
Summary: In this study, the island rule is applied to compute the entanglement entropy of Hawking radiation and investigate the Page curve for eternal black holes in massive gravity. Results show that neutral and non-extremal charged black holes do not form islands early in evaporation, leading to a linear increase in entanglement entropy. On the other hand, extremal charged black holes face issues with divergence in metric at the curvature singularity without islands. The emergence of one island near the event horizon at late times leads to saturation of the entanglement entropy by the Bekenstein-Hawking entropy. Additionally, the impact of massive gravity parameters on various aspects is analyzed in detail.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Astronomy & Astrophysics
Ming-Hui Yu et al.
Summary: This study investigates the Banados-Teiteboim-Zanelli black hole coupled to two thermal baths using the island paradigm and examines the Page curve and information paradox. The results show that for finite temperature black holes, the entanglement entropy of Hawking radiation follows the Page curve when the island is located outside the event horizon. However, extremal rotating black holes exhibit divergent Page time and scrambling time. To address this issue, the contribution of superradiance is considered, which leads to a decrease in black hole thermal entropy, scrambling time, and Page time, ultimately resulting in the domination of Hawking radiation.
Article
Astronomy & Astrophysics
Byoungjoon Ahn et al.
Summary: This study investigates the Page curve of a nonstandard black hole and finds consistency with the unitarity principle in nonextremal cases. However, further investigation is needed for extremal cases.
Article
Astronomy & Astrophysics
Ibrahim Akal et al.
Summary: This paper extensively studies moving mirrors in conformal field theories using field theoretic and holographic methods, focusing on escaping, kink, and double escaping mirror models. The holographic entanglement entropy calculations show the ideal Page curve in the kink mirror model and an interesting phase transition in the double escaping mirror model. Discussions also include the interpretation of moving mirrors in terms of two dimensional Liouville gravity and the connection between quantum energy conditions and the time evolution of holographic entanglement entropy.
CLASSICAL AND QUANTUM GRAVITY
(2021)
Article
Astronomy & Astrophysics
Donald Marolf et al.
Summary: The new paradigm in black hole thermodynamics suggests modeling black holes as standard quantum systems with a density of states set by Bekenstein-Hawking entropy. Recent research has shown that low-energy gravity offers a consistent description of black hole evaporation, reproducing the Page curve. This paradigm focuses on asymptotically-flat spacetimes and emphasizes observables that probe the entropy of Hawking radiation.
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2021)
Article
Physics, Particles & Fields
Dongsu Bak et al.
Summary: The study explores the entanglement evolution of boundary intervals in eternal Janus black holes embedded consistently into string theory in the low-energy limit. A transition in entanglement characteristics around the Page time is shown, indicating the unitarity of the evolution. Reproducing and reinterpreting these results from two different lower-dimensional perspectives reveals the feasibility of realizing double holography with gravity in two higher dimensions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hong Zhe Chen et al.
Summary: This study examines the different scenarios of black hole mass changes when coupled to an auxiliary bath system, deriving a unitary Page curve through the holographic entanglement entropy and quantum extremal surface calculations. It also investigates the impact of entanglement wedge reconstruction on reconstructing the black hole interior from a subsystem containing Hawking radiation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Ibrahim Akal et al.
Summary: In this study, the time evolution of entanglement entropy in a two-dimensional conformal field theory with a moving mirror was calculated using holography. It was found that in a setup modeling Hawking radiation, entanglement entropy exhibits linear growth, which can be interpreted as the production of entangled pairs, while in a setup mimicking black hole formation and evaporation, the evolution follows the ideal Page curve. The gravity dual of the moving mirror model constructed via holography provides a concrete model to derive the Page curve for black hole radiation in the strong coupling regime of gravity.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
Feiyu Deng et al.
Summary: The concept of defect extremal surface is introduced as the holographic counterpart of boundary quantum extremal surface. In a simple AdS/BCFT setup, it is found that the defect extremal surface formula yields precisely the same results as the boundary quantum extremal surface. The researchers also provide a decomposition procedure of an AdS bulk with a defect brane to show how the quantum extremal surface formula emerges from a brane world system with gravity glued to a flat space quantum field theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Vijay Balasubramanian et al.
Summary: The study utilizes the replica method to compute the entanglement entropy of a universe without gravity entangled with a disjoint gravitating universe in a quantum state. It reveals that at high entanglement temperatures, the island in the gravitating universe contributes to a bound on entanglement entropy in a manner akin to evaporating black holes. Additionally, it demonstrates that the entanglement wedge of the non-gravitating universe expands with increasing entanglement temperature, ultimately allowing for complete reconstruction of the gravitating universe.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Aranya Bhattacharya et al.
Summary: In this study, the subregion complexity of an evaporating black hole in AdS(3) was computed using multi-boundary wormhole models, resulting in the determination of the associated Page curve. The transition of the Page curve was smoothly realized by tracking the change in choice of HRT surfaces with time and plotting the volume over time. The inclusion of the island at Page time led to a discontinuous jump at the Page time, resulting in a phase transition in the volume subregion complexity plots.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Juan Hernandez et al.
Summary: In this study, holographic complexity in the doubly holographic model was examined to focus on the holographic complexity=volume (CV) proposal for boundary subregions in the island phase. By deriving the leading contributions to the complexity and interpreting them in terms of the generalized volume of the island, a generalization of the CV proposal for higher curvature theories of gravity was proposed. Consistency checks were provided by investigating Gauss-Bonnet gravity and f(Script capital R) gravity in the bulk.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Mohsen Alishahiha et al.
Summary: By employing the extended island formula, we computed the entanglement entropy of Hawking radiation for black hole solutions of certain gravitational models containing higher derivative terms. Our results showed that despite the non-unitarity of the corresponding gravitational models, the entropy followed the Page curve, thanks to the contribution of the island.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Vijay Balasubramanian et al.
Summary: We study black holes in 2D de Sitter JT gravity coupled to a CFT, entangled with matter in a non-gravitating universe. The entropy of the entangled matter increases indefinitely with entanglement strength, but must level off due to monogamy. The competition between field theory entanglement entropy and extremal islands in the de Sitter geometry plays a key role in stabilizing the entropy growth.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Alok Laddha et al.
Summary: This article argues that in a theory of quantum gravity in a four dimensional asymptotically flat spacetime, information about massless excitations can be obtained from a small neighborhood of the past boundary of future null infinity, and observations near a cut of future null infinity can provide information about the state, with certain limitations. These findings have implications for the information paradox and offer contrasting results to the expected Page curve.
Article
Physics, Particles & Fields
Erez Y. Urbach
Summary: In a 1+1 dimensional QFT on a circle, the von Neumann entanglement entropy of an interval for typical pure states is studied, with an expectation of a Page curve in the entropy. By employing a specific ensemble average of pure states, the ensemble-averaged Renyi entropy is written as a path integral on a singular replicated geometry. Assuming a QFT with a gravitational dual, the holographic dictionary is used to obtain the Page curve, showing dominance of the thermal saddle for short intervals and connection of replicas using a singular boundary geometry for larger intervals. This result extends the 'island conjecture' to a non-evaporating setting.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sergio E. Aguilar-Gutierrez et al.
Summary: Studying multiverse models in two-dimensional linear dilaton-gravity theories provides insights into false vacuum eternal inflation. By coupling conformal matter and calculating the Von Neumann entropy of subregions, it is observed that an island emerges covering most of the rest of the multiverse, resembling a Page-like transition. This resonates with semiclassical quantum cosmology's description of multiverse models, where saddle point geometries provide a measure for local predictions that coarse-grain over eternal inflation structures.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kohki Kawabata et al.
Summary: The entanglement capacity is considered as a probe of Hawking radiation in a two-dimensional dilaton gravity system coupled with large degrees of freedom conformal matter. A formula for calculating the capacity is derived using the gravitational path integral, suggesting a discontinuity at the Page time. Application of the formula to a replica wormhole solution in an eternal AdS black hole coupled to a non-gravitating bath revealed saturation of the entanglement capacity by the thermal capacity of the black hole in the high temperature limit.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Luca Buoninfante et al.
Summary: The information loss paradox is not necessarily related to any loss of information or lack of unitarity, and can be explained without introducing new physics. A consistent theory of quantum gravity is needed to make predictions in the final stage of black hole evaporation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Evita Verheijden et al.
Summary: In this study, the evaporation of two-dimensional black holes in JT gravity is examined from a three-dimensional perspective, where dynamics are described by introducing time-dependence. By re-scaling parameters, the process is mapped to the canonical picture of exponential evaporation, providing a geometric explanation for the appearance of island regions in the Page curve.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Aranya Bhattacharya et al.
Summary: The holographic subregion complexity of a radiation subsystem in a geometric secret-sharing model of Hawking radiation is calculated, revealing a crossover between two minimal curves and a jump in complexity at the secret-sharing time larger than the Page time. Despite accessing only a small part of the radiation, the minimal surfaces do not have access to the entire island region in this particular case. This inaccessibility is described in the context of classical Markov recovery.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Watse Sybesma
Summary: In de Sitter space, using the quantum Ryu-Takayanagi or island formula, entanglement entropy between states inside and outside the cosmological horizon was computed, resulting in the formation of an 'island' at the transition point which is significantly different from black hole horizons and may move back in time. These differences are crucial for non-violation of the no-cloning theorem in entanglement wedge reconstruction. Additionally, the introduction of a scrambling time reveals an entropy dependence expected for black holes.
CLASSICAL AND QUANTUM GRAVITY
(2021)
Article
Physics, Particles & Fields
Kohki Kawabata et al.
Summary: The study shows that in models related with gravitational phase transitions, entanglement capacity exhibits phase transitions between different types of topology and can serve as a valuable diagnostic tool in the process of black hole evaporation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
James Sully et al.
Summary: This paper reproduces holographic results through direct (B)CFT calculations. Using the replica method, the entropies are related to correlation functions of twist operators in a Euclidean BCFT. These transitions between channels lead to the holographically observed phase transitions in entropies.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kanato Goto et al.
Summary: This paper investigates replica wormholes for black holes formed by gravitational collapse in Jackiw-Teitelboim gravity, confirming that they lead to the island rule for entropy. The main technical challenge lies in the fact that replica wormholes rely on a Euclidean path integral, while the quantum extremal islands of an evaporating black hole exist only in Lorentzian signature.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Donald Marolf et al.
Summary: This work offers insights into black hole information by emphasizing operationally-defined entropy, Lorentz-signature descriptions, and asymptotically flat spacetimes. Through the use of replica wormholes, it is shown that experiments of asymptotic observers support black holes as unitary quantum systems with density of states given by the Bekenstein-Hawking formula. However, this introduces superselection sectors associated with the state of baby universes. The study of spacetimes by Polchinski and Strominger in 1994 provides a simple illustration of these concepts and techniques.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Souvik Dutta et al.
Summary: In the context of AdS/CFT, we examine the properties of reflected minimal surfaces and introduce a novel replica trick in CFTs for studying the reflected entropy, establishing a new understanding of entanglement entropy and its relationship with the entanglement wedge cross-section.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Yi Ling et al.
Summary: The study investigates the information paradox of eternal black holes with charges in a doubly-holographic model, involving calculating entanglement entropy and proposing two strategies to address the paradox. The research aims to properly describe the black hole information paradox using enough degrees of freedom on the brane in the doubly-holographic setup.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Georgios K. Karananas et al.
Summary: A novel four-dimensional black hole model is proposed, with expected growth of entanglement entropy before Page's time, but later modified significantly by emergent islands, leading to saturation at a finite value. The study reveals that the entanglement entropy changes along the RG flow with respect to the two-dimensional worldsheet length scale.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Chethan Krishnan et al.
Summary: Recent research on black holes has shown that a unitarity-compatible Page curve can be obtained from a single realization of an underlying unitary theory, which is not specific to black holes. The study of a hard sphere gas leaking slowly into a larger box has reproduced the unitarity-compatible Page curve, emphasizing the interplay between multiple time-scales in the problem. The questions addressed here are logically independent of horizon existence, suggesting that semi-classical gravity should also be viewed in a similar light.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Hao Geng et al.
Summary: The late-time dominance of entanglement islands is crucial in addressing the information paradox for AdS black holes coupled to a non-gravitational bath. When considering entanglement between different sectors, non-trivial time-dependence is observed. However, discontinuous changes in entropy properties occur with variations in the angle.
Article
Physics, Multidisciplinary
Ignacio A. Reyes
Summary: This study demonstrates how the case of free fermion in 1 + 1 dimensions reveals the details of the density matrix of radiation produced by a moving mirror, using the resolvent method to derive various parameters and determine when mirrors generate unitary transformations.
PHYSICAL REVIEW LETTERS
(2021)
Review
Physics, Multidisciplinary
Ahmed Almheiri et al.
Summary: This review discusses recent progress on the black hole information problem, focusing on a new understanding of calculating the entropy of Hawking radiation. It shows how the method for computing gravitational fine-grained entropy can be extended to account for the entropy of Hawking radiation, revealing significant corrections needed for consistency with unitary black hole evaporation.
REVIEWS OF MODERN PHYSICS
(2021)
Article
Physics, Particles & Fields
Christoph F. Uhlemann
Summary: Variants of the black hole information paradox are studied in setups of Type IIB string theory realizing four-dimensional gravity coupled to a bath. Through fully backreacted solutions for configurations of D3, D5 and NS5 branes, along with their dual descriptions as N = 4 SYM and 3d T-rho(sigma)[SU(N)] SCFTs, island contributions to the entanglement entropy of black hole radiation systems have been identified, leading to Page curves. Analogous to the critical angles found in the Karch/Randall models, critical parameters in the brane configurations and dual field theories are identified in the 10-dimensional context.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Kausik Ghosh et al.
Summary: This study examines the computation of entanglement entropy on a gravitating brane, utilizing a doubly holographic prescription with a Dirichlet anchoring condition. By sliding the anchor and analyzing the strength of gravity on the brane, researchers have discovered the holographic nature of gravity and methods for resolving the information paradox. The results align with discussions on gravitating baths and emphasize the significance of the conventional Page curve in addressing the information paradox in flat space.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Xi Dong et al.
Summary: This paper examines the deep connections between quantum entanglement and spacetime geometry, focusing on the Renyi negativities and their applications in holographic duality. By studying these quantities in the random tensor network model, the authors rigorously derive their large bond dimension asymptotics, as well as conclusions on entanglement negativity in holographic theories with a gravity dual.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Hao Geng et al.
Summary: The study explores the AdS/BCFT duality between two-dimensional conformal field theories and three-dimensional anti-de Sitter space with KarchRandall branes, focusing on entanglement entropy and communication between braneworld black holes. A consistent Page curve is found, with gravitational results matching field theory calculations. At zero temperature, an interesting extension to the AdS3/BCFT2 correspondence is uncovered, revealing different gravitational duals based on the value of Delta bcc.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Yoshinori Matsuo
Summary: Recent studies have shown that in black hole geometry, the localization of black hole information occurs in a region different from the island. The calculation suggests that this region contains all the information of the total system, while the information of the black hole is concentrated on the surface.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Elena Caceres et al.
Summary: The study on Hawking radiation emitted by the eternal BTZ black hole in equilibrium with a thermal bath, using the notion of double holography, reveals significant differences compared to AdS/CFT work, including a decrease in late-time entropy, existence of island degrees of freedom at all times, and emergence of a field-theoretic IR divergence under certain conditions.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Sanam Azarnia et al.
Summary: This paper resolves the information paradox in flat-space cosmologies using the island proposal, coupling an auxiliary flat bath system to the spacetime near the timelike singularity to allow Hawking modes to enter the bath for measurement. By adding island regions receiving partners of Hawking modes, the entropy of radiation follows a Page curve, leading to resolution of the information paradox. Additionally, a quantum teleportation protocol is designed to extract information residing in islands.
Article
Physics, Multidisciplinary
Bin Guo et al.
Summary: The study examines recent proposals related to the 'wormhole paradigm' for black holes, revealing the nonlocality required in these proposals and highlighting the contrast with the fuzzball paradigm. It also explores the concept of effective horizon behavior and the implications of topology change in quantum gravity. This study provides insights into the dynamics and behavior of black holes under different paradigms.
TURKISH JOURNAL OF PHYSICS
(2021)
Article
Astronomy & Astrophysics
Ran Li et al.
Summary: Using the quantum extremal island formula, a calculation was performed on the generalized entanglement entropy of Hawking radiation from a two-dimensional Liouville black hole, but no reasonable island was found during the extremization of generalized entropy. The qualitative explanation provided suggests that the page curve cannot be reproduced in the present model, indicating that the islands may not necessarily solve the information paradox for Liouville black holes.
Article
Quantum Science & Technology
Jonah Kudler-Flam et al.
Summary: This work explores the distinguishability between random states and black hole microstates, calculating various generalized quantities to reveal new structures. Extending the study to random tensor networks leads to the discovery of new phenomena, enhancing the understanding of the relationship between holographic states and random tensor networks. The implications on the black hole information problem are discussed, providing new insights and solutions.
Article
Physics, Particles & Fields
Jinwei Chu et al.
Summary: The study defines defect extremal surface by minimizing the Ryu-Takayanagi surface corrected by the quantum theory localized on the defect, and extends the results to higher dimensions. It is found that the entropy computed from bulk defect extremal surface is generally less than that from island formula in boundary low energy effective theory, suggesting a smaller entropy from the UV completion of island formula.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Quantum Science & Technology
Hassan Shapourian et al.
Summary: This paper investigates the entanglement properties of random mixed states, showing that the logarithmic negativity behaves similarly to the Page curve in different ranges of subregion sizes, with an intermediate phase where it only depends on the size of the system and the bath. When the bath is larger than the system by at least two extra qubits, the logarithmic negativity is identically zero, indicating no distillable entanglement. Using a diagrammatic approach, the semi-circle law of the entanglement negativity spectrum in the two latter regimes is derived, revealing deviations from the Gaussian unitary ensemble for higher-order corrections.
Article
Physics, Particles & Fields
Lars Aalsma et al.
Summary: Recent research has shown that quantum extremal islands can contribute to the fine-grained entropy of black hole radiation, reproducing the unitary Page curve. In de Sitter space, an observer may be able to decode information hidden behind the cosmological horizon, but this could potentially lead to the observer hitting a singularity that forms earlier than the Page time.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Hao Geng et al.
Summary: The study formulates a version of the information paradox in de Sitter spacetime, which is resolved by the emergence of entanglement islands as shown in the De Sitter/de Sitter correspondence, leading to a time-dependent Page curve for the entanglement entropy. It suggests that the distribution of microscopic degrees of freedom depends on descriptions, with differences between the static and global descriptions of de Sitter spacetime.
Article
Astronomy & Astrophysics
Raphael Bousso et al.
Summary: The paper presents a set of conditions that ensure the existence of an entanglement island and set an upper bound on the entropy, making it possible to derive the main features of the Page curve for an evaporating black hole in any spacetime dimension. This argument utilizes Wall's maximin formulation and the quantum focusing conjecture, resulting in a novel entropy bound as a corollary.
Article
Astronomy & Astrophysics
Gautam Sengupta et al.
Summary: The large central charge behavior of entanglement negativity for a mixed state configuration in a holographic CFT1+1 was established by analyzing the limit of four point and six point twist correlators. The results support the proposed holographic entanglement negativity conjecture in the AdS(3)/CFT2 scenario.
Article
Physics, Particles & Fields
Aranya Bhattacharya et al.
Summary: The study focuses on entanglement islands and subsystem volume complexity of a conformal defect in d-dimensions within the Randall-Sundrum (RS) braneworld model. The left and right modes of the defect mimic an eternal black hole and radiation system, leading to a unitarity-compatible Page curve for the entanglement entropy. The volumes corresponding to the left and right branes show an interesting jump at Page time, indicating a complexity phase transition.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Vijay Balasubramanian et al.
Summary: The study discusses a black hole entangled with an auxiliary radiation system in three-dimensional AdS space and proposes a realization of the ER=EPR scenario by combining with external radiation. By extending the Ryu-Takayanagi formula, it is found that the Page curve for evaporating black holes can be reproduced. Further research suggests limitations in reconstructing certain regions in the interior of Hawking radiation using subsystems at different stages.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Chethan Krishnan
Summary: The article discusses a doubly-holographic prescription for black holes in braneworlds with a vanishing cosmological constant, involving calculating Ryu-Takayanagi surfaces in AdS black funnel spacetimes. The approach is useful for cosmological black holes interacting with deconfined, large-N matter. The study provides evidence for cosmological islands in these braneworld systems.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Yiming Chen
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Ahmed Almheiri et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Ahmed Almheiri et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Fridrik Freyr Gautason et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Takanori Anegawa et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Thomas Hartman et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Koji Hashimoto et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Yiming Chen et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Chris Akers et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Multidisciplinary
Ahmed Almheiri et al.
Article
Physics, Particles & Fields
Cesar A. Agon et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Hao Geng et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Geoffrey Penington
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Hong Zhe Chen et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Tianyi Li et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Thomas Hartman et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Astronomy & Astrophysics
Venkatesa Chandrasekaran et al.
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Astronomy & Astrophysics
Aranya Bhattacharya
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Astronomy & Astrophysics
Michael R. R. Good
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Michael R. R. Good et al.
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Vinay Malvimat et al.
EUROPEAN PHYSICAL JOURNAL C
(2019)
Article
Physics, Multidisciplinary
Pawel Caputa et al.
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Particles & Fields
Teppei Shimaji et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Vinay Malvimat et al.
EUROPEAN PHYSICAL JOURNAL C
(2019)
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Astronomy & Astrophysics
Parul Jain et al.
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Yuya Kusuki et al.
PHYSICAL REVIEW LETTERS
(2019)
Article
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Hyun-Sik Jeong et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Ahmed Almheiri et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Astronomy & Astrophysics
Jonah Kudler-Flam et al.
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Physics, Particles & Fields
Pankaj Chaturvedi et al.
EUROPEAN PHYSICAL JOURNAL C
(2018)
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Physics, Multidisciplinary
Koji Umemoto et al.
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Physics, Particles & Fields
Pankaj Chaturvedi et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Particles & Fields
Phuc Nguyen et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Multidisciplinary
Hayato Hirai et al.
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
(2018)
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Multidisciplinary Sciences
Xi Dong
NATURE COMMUNICATIONS
(2016)
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Physics, Multidisciplinary
Pasquale Calabrese et al.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2015)
Article
Physics, Particles & Fields
Mukund Rangamani et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2014)
Article
Mechanics
Pasquale Calabrese et al.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2013)
Article
Physics, Multidisciplinary
Pasquale Calabrese et al.
PHYSICAL REVIEW LETTERS
(2012)
Article
Physics, Particles & Fields
Matthew M. Roberts
JOURNAL OF HIGH ENERGY PHYSICS
(2012)
Article
Physics, Multidisciplinary
Tadashi Takayanagi
PHYSICAL REVIEW LETTERS
(2011)
Article
Physics, Particles & Fields
Mitsutoshi Fujita et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2011)
Article
Physics, Particles & Fields
Ling-Yan Hung et al.
JOURNAL OF HIGH ENERGY PHYSICS
(2011)
Review
Physics, Multidisciplinary
Pasquale Calabrese et al.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2009)
Review
Physics, Multidisciplinary
Ryszard Horodecki et al.
REVIEWS OF MODERN PHYSICS
(2009)
Article
Physics, Multidisciplinary
Shinsei Ryu et al.
PHYSICAL REVIEW LETTERS
(2006)
Article
Physics, Multidisciplinary
MB Plenio
PHYSICAL REVIEW LETTERS
(2005)
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Physics, Mathematical
BM Terhal et al.
JOURNAL OF MATHEMATICAL PHYSICS
(2002)
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Optics
G Vidal et al.
