4.6 Article

Real-complex quantum phase transition in non-Hermitian disorder-free systems

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Physics, Multidisciplinary

Dominance of Replica Off-Diagonal Configurations and Phase Transitions in a PT Symmetric Sachdev-Ye-Kitaev Model

Antonio M. Garcia-Garcia et al.

Summary: We demonstrate that the low temperature phase of uncoupled, quantum chaotic, non-Hermitian systems such as the SYK model or the Ginibre ensemble of random matrices is governed by saddle points that couple replicas and conjugate replicas after ensemble averaging. This leads to an almost flat free energy that terminates in a first-order phase transition. In the case of the SYK model, we explicitly show that the spectrum of the effective replica theory has a gap. These features resemble those induced by wormholes in the gravity path integral, suggesting a strong connection between these configurations. For a nonchaotic SYK model, the results differ qualitatively with a gapless spectrum in the low temperature phase and an infinite number of second order phase transitions unrelated to replica symmetry restoration.

PHYSICAL REVIEW LETTERS (2022)

Review Nanoscience & Nanotechnology

Excitonic devices with van der Waals heterostructures: valleytronics meets twistronics

Alberto Ciarrocchi et al.

Summary: 2D semiconducting transition metal dichalcogenides are a promising class of materials that have unique properties, including large exciton binding energies. The ability to control interlayer excitons in van der Waals heterostructures provides opportunities for spin and valley degree of freedom manipulation in solid-state devices. This review discusses recent progress in device architectures and engineering techniques for tailored properties of interlayer excitons.

NATURE REVIEWS MATERIALS (2022)

Article Physics, Multidisciplinary

Magnetic Suppression of Non-Hermitian Skin Effects

Ming Lu et al.

Summary: The skin effect, where macroscopically many bulk states are aggregated toward the system boundary, is a significant phenomenon in non-Hermitian quantum systems. Applying a magnetic field can largely suppress this effect by pushing skin states back into the bulk and reducing the skin topological area. The restoration of the validity of the low-energy description by the applied magnetic field reveals a unique irrelevance of the generalized Brillouin zone in the standard non-Bloch band theory of non-Hermitian systems.

PHYSICAL REVIEW LETTERS (2021)

Article Multidisciplinary Sciences

Observation of hybrid higher-order skin-topological effect in non-Hermitian topolectrical circuits

Deyuan Zou et al.

Summary: This work reports the experimental realizations of hybrid higher-order skin-topological effect in non-reciprocal topoelectrical circuits, showcasing the dynamic interplay of non-reciprocal pumping and topological localization to form various states. Through a highly versatile and scalable circuit platform, the authors demonstrate higher-order topological skin effects, paving the way for applications in topological switching and sensing.

NATURE COMMUNICATIONS (2021)

Article Physics, Multidisciplinary

Nonunitary Scaling Theory of Non-Hermitian Localization

Kohei Kawabata et al.

Summary: The authors developed a scaling theory of localization in non-Hermitian systems, revealing that non-Hermiticity introduces a new scale and breaks down the conventional one-parameter scaling theory of localization. The unconventional non-Hermitian delocalization is identified as originating from the two-parameter scaling. Furthermore, based on reciprocity, the authors established the threefold universality of non-Hermitian localization, where reciprocity prohibits delocalization without internal degrees of freedom, and symplectic reciprocity results in a new type of symmetry-protected delocalization.

PHYSICAL REVIEW LETTERS (2021)

Article Physics, Multidisciplinary

Geometric Response and Disclination-Induced Skin Effects in Non-Hermitian Systems

Xiao-Qi Sun et al.

Summary: The study reveals the presence of disclination-induced non-Hermitian skin effects in systems with fourfold rotation symmetry, leading to nontrivial one-dimensional point-gap topology along the direction of the disclination lines. The results can be described using field theory, enriching the topological field theory of non-Hermitian systems.

PHYSICAL REVIEW LETTERS (2021)

Article Materials Science, Multidisciplinary

Non-Hermitian skin effect beyond the tight-binding models

Stefano Longhi

Summary: The energy bands of non-Hermitian systems have nontrivial topological features that result from the complex nature of the energy spectrum, characterized by integer nonzero winding numbers. The nontrivial winding provides the topological signature of the non-Hermitian skin effect (NHSE) at lattice edges under open boundary conditions. While most current results rely on tight-binding models of non-Hermitian systems, exact Bloch wave function analysis of the NHSE and related topological band theory is still lacking.

PHYSICAL REVIEW B (2021)

Article Materials Science, Multidisciplinary

Probing the superfluid-insulator phase transition by a non-Hermitian external field

X. Z. Zhang et al.

Summary: This study investigates the response of a thermal state of the Hubbard-like system to non-Hermitian perturbations, showing sensitivity to quantum phase transitions and Uhlmann fidelity decay in the superfluid phase. The phase diagram at zero temperature remains unchanged even with a local probing field applied, as demonstrated in celebrated models in a finite-size system. This work offers an alternative approach to probe the superfluid-insulator quantum phase transition at nonzero temperature.

PHYSICAL REVIEW B (2021)

Article Materials Science, Multidisciplinary

Quantum anomaly, non-Hermitian skin effects, and entanglement entropy in open systems

Nobuyuki Okuma et al.

Summary: This study explores the roles of non-Hermitian topology in the spectral properties and entanglement structures of open systems, providing a unified understanding of quantum anomaly and non-Hermitian skin effects. By using this unified interpretation, symmetry-protected and higher-dimensional skin effects are classified. In terms of entanglement structure, the steady states of fermionic open systems with non-Hermitian topological spectra are investigated, linking them to Majorana edge modes and chiral edge states.

PHYSICAL REVIEW B (2021)

Article Materials Science, Multidisciplinary

Attractive and repulsive dipolar interaction in bilayers of indirect excitons

D. J. Choksy et al.

Summary: Through experimental measurements and theoretical simulations, we found that increasing the density of IXs in one layer leads to a reduction in energy for IXs in the other layer, as well as an in-plane shift of the cloud of IXs towards the cloud of IXs in the other layer. These behaviors are qualitatively consistent with attractive dipolar interaction and are higher than the values predicted by the correlated liquid theory.

PHYSICAL REVIEW B (2021)

Article Physics, Multidisciplinary

Topological Origin of Non-Hermitian Skin Effects

Nobuyuki Okuma et al.

PHYSICAL REVIEW LETTERS (2020)

Article Physics, Multidisciplinary

Non-Hermitian bulk-boundary correspondence in quantum dynamics

Lei Xiao et al.

NATURE PHYSICS (2020)

Review Physics, Condensed Matter

Non-Hermitian physics

Yuto Ashida et al.

ADVANCES IN PHYSICS (2020)

Article Materials Science, Multidisciplinary

Unconventional scaling at non-Hermitian critical points

R. Arouca et al.

PHYSICAL REVIEW B (2020)

Article Multidisciplinary Sciences

Critical non-Hermitian skin effect

Linhu Li et al.

NATURE COMMUNICATIONS (2020)

Article Physics, Multidisciplinary

Non-Hermitian Many-Body Localization

Ryusuke Hamazaki et al.

PHYSICAL REVIEW LETTERS (2019)

Article Physics, Multidisciplinary

Theory of Non-Hermitian Fermionic Superfluidity with a Complex-Valued Interaction

Kazuki Yamamoto et al.

PHYSICAL REVIEW LETTERS (2019)

Article Physics, Multidisciplinary

Non-Hermitian Skin Effect and Chiral Damping in Open Quantum Systems

Fei Song et al.

PHYSICAL REVIEW LETTERS (2019)

Article Physics, Multidisciplinary

Symmetry and Topology in Non-Hermitian Physics

Kohei Kawabata et al.

PHYSICAL REVIEW X (2019)

Article Physics, Multidisciplinary

Universal T-linear resistivity and Planckian dissipation in overdoped cuprates

A. Legros et al.

NATURE PHYSICS (2019)

Article Physics, Multidisciplinary

Topological Band Theory for Non-Hermitian Hamiltonians

Huitao Shen et al.

PHYSICAL REVIEW LETTERS (2018)

Article Physics, Multidisciplinary

Edge States and Topological Invariants of Non-Hermitian Systems

Shunyu Yao et al.

PHYSICAL REVIEW LETTERS (2018)

Article Physics, Multidisciplinary

Disorder-Free Localization

A. Smith et al.

PHYSICAL REVIEW LETTERS (2017)

Article Optics

Multiparticle quantum dynamics under real-time observation

Yuto Ashida et al.

PHYSICAL REVIEW A (2017)

Article Physics, Multidisciplinary

Superconductivity near a Quantum-Critical Point: The Special Role of the First Matsubara Frequency

Yuxuan Wang et al.

PHYSICAL REVIEW LETTERS (2016)

Article Physics, Particles & Fields

A bound on chaos

Juan Maldacena et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Article Multidisciplinary Sciences

Non-hermitian quantum thermodynamics

Bartlomiej Gardas et al.

SCIENTIFIC REPORTS (2016)

Article Materials Science, Multidisciplinary

Exciton band structure of monolayer MoS2

Fengcheng Wu et al.

PHYSICAL REVIEW B (2015)

Article Physics, Multidisciplinary

Theory of universal incoherent metallic transport

Sean A. Hartnoll

NATURE PHYSICS (2015)

Article Physics, Multidisciplinary

Heralded Magnetism in Non-Hermitian Atomic Systems

Tony E. Lee et al.

PHYSICAL REVIEW X (2014)

Article Physics, Particles & Fields

Black holes and the butterfly effect

Stephen H. Shenker et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Article Materials Science, Multidisciplinary

Dielectric screening in two-dimensional insulators: Implications for excitonic and impurity states in graphane

Pierluigi Cudazzo et al.

PHYSICAL REVIEW B (2011)

Article Physics, Mathematical

PSEUDO-HERMITIAN REPRESENTATION OF QUANTUM MECHANICS

Ali Mostafazadeh

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS (2010)

Article Physics, Multidisciplinary

Tricritical Point and Wing Structure in the Itinerant Ferromagnet UGe2

V. Taufour et al.

PHYSICAL REVIEW LETTERS (2010)

Article Materials Science, Multidisciplinary

Exciton-exciton interaction and biexciton formation in bilayer systems

R. M. Lee et al.

PHYSICAL REVIEW B (2009)

Article Multidisciplinary Sciences

Direct observation of Anderson localization of matter waves in a controlled disorder

Juliette Billy et al.

NATURE (2008)

Review Physics, Multidisciplinary

Quantum criticality in heavy-fermion metals

Philipp Gegenwart et al.

NATURE PHYSICS (2008)

Article Physics, Multidisciplinary

Quantum critical scaling in graphene

Daniel E. Sheehy et al.

PHYSICAL REVIEW LETTERS (2007)

Article Physics, Multidisciplinary

Nonequilibrium tricritical point in a system with long-range interactions

Andrea Antoniazzi et al.

PHYSICAL REVIEW LETTERS (2007)

Article Astronomy & Astrophysics

Thermodynamics of pseudo-hermitian systems in equilibrium

Vit Jakubsky

MODERN PHYSICS LETTERS A (2007)

Review Physics, Multidisciplinary

How generic scale invariance influences quantum and classical phase transitions

D Belitz et al.

REVIEWS OF MODERN PHYSICS (2005)

Article Physics, Condensed Matter

Why first order quantum phase transitions are interesting

C Pfleiderer

JOURNAL OF PHYSICS-CONDENSED MATTER (2005)

Article Physics, Multidisciplinary

Quantum phase transitions in the itinerant ferromagnet ZrZn2 -: art. no. 256404

M Uhlarz et al.

PHYSICAL REVIEW LETTERS (2004)

Article Multidisciplinary Sciences

Bose-Einstein condensation of excitons in bilayer electron systems

JP Eisenstein et al.

NATURE (2004)

Article Materials Science, Multidisciplinary

Quantum criticality beyond the Landau-Ginzburg-Wilson paradigm

T Senthil et al.

PHYSICAL REVIEW B (2004)

Article Physics, Multidisciplinary

Localization-delocalization transition in non-Hermitian disordered systems

AV Kolesnikov et al.

PHYSICAL REVIEW LETTERS (2000)