Hybrid skin-topological modes without asymmetric couplings

Article Multidisciplinary Sciences

Topological triple phase transition in non-Hermitian Floquet quasicrystals

Sebastian Weidemann et al.

Summary: Phase transitions in non-Hermitian quasicrystals can be mutually interlinked, and the intertwinement of symmetry breaking, topology, and mobility phase transitions is observed in this study using photonic quantum walks.

NATURE (2022)

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Article Multidisciplinary Sciences

Time-periodic corner states from Floquet higher-order topology

Weiwei Zhu et al.

Nature Communications (2022)

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Article Physics, Multidisciplinary

Gain-Loss-Induced Hybrid Skin-Topological Effect

Yaohua Li et al.

Summary: The study reveals the gain-loss-induced hybrid second-order skin-topological effect and the PT phase transition in skin-topological modes. The localized behavior of topological edge modes on a special type of corner, in contrast to the extended bulk modes, is found to be related to the interplay between gain, loss, and the chiral edge currents induced by nonlocal flux. The research establishes a relation between the skin-topological effect and the PT symmetries belonging to different edges.

PHYSICAL REVIEW LETTERS (2022)

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Article Multidisciplinary Sciences

Universal non-Hermitian skin effect in two and higher dimensions

Kai Zhang et al.

Summary: The authors introduce the skin effect discovered in a one-dimensional experiment and establish its universality in two and higher dimensional non-Hermitian systems. They also propose two new types of skin effect and show that systems with exceptional points exhibit the skin effect.

NATURE COMMUNICATIONS (2022)

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Article Materials Science, Multidisciplinary

Topology in non-Hermitian Chern insulators with skin effect

Yi-Xin Xiao et al.

Summary: This study investigates the bulk-boundary correspondence in a Chern insulator model with non-Hermitian skin effect, using the biorthogonal approach and non-Bloch approach to suppress the skin effect. The biorthogonal inverse participation ratio and non-Bloch Chern number are utilized as metrics and tools for predicting topological features. Moreover, the occurrence of crossing degeneracies between bulk and edge bands enriches the localization behavior of edge states.

PHYSICAL REVIEW B (2022)

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Article Materials Science, Multidisciplinary

Connections between the open-boundary spectrum and the generalized Brillouin zone in non-Hermitian systems

Deguang Wu et al.

Summary: This paper investigates the connections between the periodic-boundary spectrum, open-boundary spectrum, and the generalized Brillouin zone in a one-dimensional non-Hermitian system. It proposes an efficient numerical method for accurately calculating these properties. Furthermore, the study extends these connections to non-Hermitian systems in the symplectic symmetry class.

PHYSICAL REVIEW B (2022)

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Review Physics, Condensed Matter

Band Representations and Topological Quantum Chemistry

Jennifer Cano et al.

Summary: This article provides a pedagogical review of the theory of topological quantum chemistry and topological crystalline insulators, focusing on the properties of crystal symmetry groups and band representations. By quantifying the symmetry of band structures and imposing symmetry constraints on band connectivity in momentum space, new topological phases can be discovered and classified. The article concludes with an outlook toward future developments in this field.

ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 12, 2021 (2021)

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Review Physics, Multidisciplinary

Exceptional topology of non-Hermitian systems

Emil J. Bergholtz et al.

Summary: This review discusses the current understanding of the role of topology in non-Hermitian systems and its physical consequences in dissipative settings, focusing on the concept of exceptional degeneracies and its distinct phenomena, as well as the new notions of gapped phases in single-band systems. The unique sensitivity of non-Hermitian matrices to boundary conditions is highlighted, leading to anomalous relationships between bulk and boundary physics. Additionally, applications of non-Hermitian topology in classical and quantum systems are reviewed, showing its relevance beyond the field of topological phases.

REVIEWS OF MODERN PHYSICS (2021)

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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)

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Article Multidisciplinary Sciences

Realization of active metamaterials with odd micropolar elasticity

Yangyang Chen et al.

Summary: Mechanical metamaterials exhibit unique properties not found in ordinary materials, such as active metamaterials with self-sensing characteristics demonstrated by the authors. These active metamaterials can convert electrical energy into mechanical work, and their odd modulus allows for localized vibrational modes at sample boundaries.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Acoustic non-Hermitian skin effect from twisted winding topology

Li Zhang et al.

Summary: The experimental realization of the non-Hermitian skin effect in a one-dimensional non-reciprocal acoustic crystal demonstrates unique features such as bipolar localization and Bloch point, revealing previously unnoticed characteristics of NHSE originating from complex non-Hermitian winding topology.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Simulation of higher-order topological phases and related topological phase transitions in a superconducting qubit

Jingjing Niu et al.

Summary: This study simulates a second-order topological phase in a two-dimensional space using superconducting qubits, observing the realization of higher-order topology directly through the measurement of pseudo-spin texture in momentum space of the bulk for the first time. Novel topological phase transitions were further observed from the second-order topological phase to the trivial phase and to the first-order topological phase with nonzero Chern number.

SCIENCE BULLETIN (2021)

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Article Multidisciplinary Sciences

Non-Hermitian route to higher-order topology in an acoustic crystal

He Gao et al.

Summary: The study discusses the impact of introducing losses on higher-order topological insulators in an acoustic crystal, demonstrating that losses with non-Hermitian properties can induce the emergence of higher-order topology, paving the way for exploring exotic non-Hermitian-induced topological phases.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Direct dynamical characterization of higher-order topological phases with nested band inversion surfaces

Linhu Li et al.

Summary: This study proposes a dynamics-based characterization method for a class of Z-type HOTPs, connecting quantum quench dynamics with nested configurations of band inversion surfaces to detect each order of topology equally. The approach offers a new perspective on investigating and engineering higher-order topological phase transitions.

SCIENCE BULLETIN (2021)

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Article Multidisciplinary Sciences

Non-Hermitian Skin Effect in a Non-Hermitian Electrical Circuit

Shuo Liu et al.

Summary: The conventional bulk-boundary correspondence fails in certain non-Hermitian systems with broken reciprocity, while a non-Bloch bulk-boundary condition based on a non-Bloch winding number can accurately predict the number of topological edge states.

RESEARCH (2021)

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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)

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Article Physics, Multidisciplinary

Observation of Non-Hermitian Topology with Nonunitary Dynamics of Solid-State Spins

Wengang Zhang et al.

Summary: This study implements a non-Hermitian topological phase model and investigates it using a solid-state quantum simulator, demonstrating both integer and fractional winding numbers. The non-Hermitian topological phase with a fractional winding number is intrinsic to non-Hermitian systems and cannot be continuously deformed into any Hermitian topological phase.

PHYSICAL REVIEW LETTERS (2021)

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Article Multidisciplinary Sciences

Guided accumulation of active particles by topological design of a second-order skin effect

Lucas S. Palacios et al.

Summary: Researchers have designed a two-dimensional periodic topographical design that allows for spontaneous edge guidance and corner accumulation of self-propelled particles. By utilizing a second-order non-Hermitian skin effect to break detailed balance, they were able to control and enhance guidance and accumulation in a predictable manner. This work establishes a connection between active and topological matter, providing a blueprint for designing devices that exhibit spontaneous, robust, and predictable guided motion and accumulation.

NATURE COMMUNICATIONS (2021)

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Article Multidisciplinary Sciences

Observation of higher-order non-Hermitian skin effect

Xiujuan Zhang et al.

Summary: The study demonstrates the higher-order non-Hermitian skin effect in two-dimensional acoustic higher-order topological insulators, where non-Hermiticity drives wave localizations toward opposite edges upon different spin polarizations. Additionally, for finite systems with both edges and corners, the higher-order non-Hermitian skin effect leads to wave localizations toward two opposite corners in a spin-dependent manner, allowing for rich wave manipulation.

NATURE COMMUNICATIONS (2021)

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Article Materials Science, Multidisciplinary

Non-Hermitian skin effect of dislocations and its topological origin

Balaganchi A. Bhargava et al.

Summary: In two-dimensional non-Hermitian systems, dislocations can lead to density accumulation or depletion by localizing an extensive number of states. The discovery of a topological invariant responsible for the dislocation skin effect sheds light on a new aspect of non-Hermitian systems and their defects. This effect, characterized by a Z(2) Hopf index dependent on the Burgers vector, challenges the known topological classification based on bulk-defect correspondence.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Non-Hermitian higher-order Weyl semimetals

Sayed Ali Akbar Ghorashi et al.

Summary: The study reveals that non-Hermitian higher-order Weyl semimetals exhibit various configurations of surface Fermi arcs and exceptional Fermi rings when the reality of bulk spectra is lost. Additionally, the discovery of non-Hermitian Weyl nodes originating from non-Hermiticity suggests a unique intrinsically non-Hermitian phase called exceptional HOWSM. Furthermore, the study shows exceptional stability of Fermi arcs, known as exceptional helicity, due to the complex nature of the spectrum.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Non-Hermitian higher-order Dirac semimetals

Sayed Ali Akbar Ghorashi et al.

Summary: This Letter studies three-dimensional non-Hermitian higher-order Dirac semimetals, focusing on their hybrid-PT topological phase and the emergence of exceptional Fermi rings. By applying Hermitian perturbations, various phases are discovered, paving the way for rich phenomena and hybrid functionality to be readily realized in experiment.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Disorder-driven phase transition in the second-order non-Hermitian skin effect

Kyoung-Min Kim et al.

Summary: The article discusses the disorder-driven phase transition of the non-Hermitian skin effect, describing the evolution of boundary modes in the complex energy plane and comparing it to the behavior in ordered systems.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Symmetry analysis of anomalous Floquet topological phases

Weiwei Zhu et al.

Summary: This work presents a physically motivated and easy-to-implement approach to enhance symmetry analysis to distinguish between different Floquet topological phases, particularly in the case of an inversion-symmetric periodically driven system. It shows that stable dynamical symmetry inversion points can be used to differentiate topological states from normal insulators, even when their symmetry eigenvalues are the same.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Delocalization of topological edge states

Weiwei Zhu et al.

Summary: This study investigates the competition between non-Hermitian skin effect localization and topological localization of in-gap edge states in one-dimensional models. It reveals that even topologically protected edge states can be perfectly delocalized at critical system parameters, particularly when the real spectrum of the system's edge states falls on the same complex spectral loop obtained under periodic boundary conditions.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Dual topological characterization of non-Hermitian Floquet phases

Longwen Zhou et al.

Summary: This study introduces a dual scheme to characterize the topology of non-Hermitian Floquet systems using a piecewise quenched nonreciprocal Su-Schrieffer-Heeger model. It reveals experimentally accessible winding numbers under periodic boundary conditions and a Floquet version of the open boundary winding number. The results suggest that a dual characterization of non-Hermitian Floquet topological matter is necessary for further studies in nonequilibrium systems.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Non-Hermitian second-order skin and topological modes

Yongxu Fu et al.

Summary: The paper investigates second-order corner modes in non-Hermitian systems using a nested tight-binding formalism, providing an accurate description of corner modes and hybrid skin-topological corner modes for the four-band model. By validating and illustrating the results with specific examples, the proposed method proves to be effective in capturing the corner modes induced by second-order skin effect.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Floquet higher-order topological insulator in a periodically driven bipartite lattice

Weiwei Zhu et al.

Summary: Floquet higher-order topological insulators (FHOTIs) are a novel topological phase that can occur in periodically driven lattices. An experimentally realistic bipartite system can host FHOTI phases and exhibit interesting phase transitions without breaking lattice symmetry. In the FHOTI phase, the lattice features corner modes at specific eigenphases that are robust against disorder.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Dislocation non-Hermitian skin effect

Frank Schindler et al.

Summary: Crystal defects can serve as probes of intrinsic non-Hermitian topology, inducing a non-Hermitian skin effect in point-gapped systems. Two-dimensional systems may exhibit weak or strong non-Hermitian topology, related to Hatano-Nelson chains, and show a dislocation response.

PHYSICAL REVIEW B (2021)

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Article Physics, Multidisciplinary

Light-induced anomalous Hall effect in graphene

J. W. McIver et al.

NATURE PHYSICS (2020)

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Article Physics, Multidisciplinary

Non-Bloch-Band Collapse and Chiral Zener Tunneling

S. Longhi

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Non-Hermitian Boundary Modes and Topology

Dan S. Borgnia et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Topological Origin of Non-Hermitian Skin Effects

Nobuyuki Okuma et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Multidisciplinary Sciences

Topological funneling of light

Sebastian Weidemann et al.

SCIENCE (2020)

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Article Physics, Multidisciplinary

Non-Hermitian bulk-boundary correspondence in quantum dynamics

Lei Xiao et al.

NATURE PHYSICS (2020)

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Article Physics, Multidisciplinary

Generalized bulk-boundary correspondence in non-Hermitian topolectrical circuits

T. Helbig et al.

NATURE PHYSICS (2020)

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Article Physics, Multidisciplinary

Realization of an anomalous Floquet topological system with ultracold atoms

Karen Wintersperger et al.

NATURE PHYSICS (2020)

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Article Physics, Multidisciplinary

Topological Switch for Non-Hermitian Skin Effect in Cold-Atom Systems with Loss

Linhu Li et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Realization of Anomalous Floquet Insulators in Strongly Coupled Nanophotonic Lattices

Shirin Afzal et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Topological Phase Transition in the Non-Hermitian Coupled Resonator Array

Yutian Ao et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

PT-Symmetric Topological Edge-Gain Effect

Alex Y. Song et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Correspondence between Winding Numbers and Skin Modes in Non-Hermitian Systems

Kai Zhang et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Non-Hermitian Band Topology and Skin Modes in Active Elastic Media

Colin Scheibner et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Physics, Multidisciplinary

Non-Hermitian Bulk-Boundary Correspondence and Auxiliary Generalized Brillouin Zone Theory

Zhesen Yang et al.

PHYSICAL REVIEW LETTERS (2020)

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Review Physics, Condensed Matter

Non-Hermitian physics

Yuto Ashida et al.

ADVANCES IN PHYSICS (2020)

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Article Physics, Multidisciplinary

Reciprocal skin effect and its realization in a topolectrical circuit

Tobias Hofmann et al.

PHYSICAL REVIEW RESEARCH (2020)

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Article Physics, Multidisciplinary

Photonic non-Hermitian skin effect and non-Bloch bulk-boundary correspondence

Xueyi Zhu et al.

PHYSICAL REVIEW RESEARCH (2020)

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Article Materials Science, Multidisciplinary

Second-order topological non-Hermitian skin effects

Ryo Okugawa et al.

PHYSICAL REVIEW B (2020)

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Article Multidisciplinary Sciences

Observation of non-Hermitian topology and its bulk-edge correspondence in an active mechanical metamaterial

Ananya Ghatak et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

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Article Multidisciplinary Sciences

Critical non-Hermitian skin effect

Linhu Li et al.

NATURE COMMUNICATIONS (2020)

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Article Materials Science, Multidisciplinary

Higher-order non-Hermitian skin effect

Kohei Kawabata et al.

PHYSICAL REVIEW B (2020)

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Article Materials Science, Multidisciplinary

Non-Hermitian Floquet topological phases: Exceptional points, coalescent edge modes, and the skin effect

Xizheng Zhang et al.

PHYSICAL REVIEW B (2020)

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Article Materials Science, Multidisciplinary

Non-Bloch band theory of non-Hermitian Hamiltonians in the symplectic class

Kohei Kawabata et al.

PHYSICAL REVIEW B (2020)

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Review Physics, Applied

Band structure engineering and non-equilibrium dynamics in Floquet topological insulators

Mark S. Rudner et al.

NATURE REVIEWS PHYSICS (2020)

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Article Materials Science, Multidisciplinary

Perspective on topological states of non-Hermitian lattices

Luis E. F. Foa Torres

JOURNAL OF PHYSICS-MATERIALS (2020)

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Review Physics, Condensed Matter

New topological invariants in non-Hermitian systems

Ananya Ghatak et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2019)

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Article Physics, Multidisciplinary

Second-order topology and multidimensional topological transitions in sonic crystals

Xiujuan Zhang et al.

NATURE PHYSICS (2019)

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Review Physics, Multidisciplinary

Topological photonics

Tomoki Ozawa et al.

REVIEWS OF MODERN PHYSICS (2019)

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Review Chemistry, Physical

Parity-time symmetry and exceptional points in photonics

S. K. Ozdemir et al.

NATURE MATERIALS (2019)

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Article Optics

Photonic quadrupole topological phases

Sunil Mittal et al.

NATURE PHOTONICS (2019)

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Article Physics, Multidisciplinary

Direct Observation of Corner States in Second-Order Topological Photonic Crystal Slabs

Xiao-Dong Chen et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

Visualization of Higher-Order Topological Insulating Phases in Two-Dimensional Dielectric Photonic Crystals

Bi-Ye Xie et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

Hybrid Higher-Order Skin-Topological Modes in Nonreciprocal Systems

Ching Hua Lee et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

Photonic Anomalous Quantum Hall Effect

Sunil Mittal et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Optics

Photonic crystal nanocavity based on a topological corner state

Yasutomo Ota et al.

OPTICA (2019)

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Article Physics, Multidisciplinary

Higher-Order Topological Corner States Induced by Gain and Loss

Xi-Wang Luo et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

Non-Bloch Band Theory of Non-Hermitian Systems

Kazuki Yokomizo et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Physics, Multidisciplinary

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

Fei Song et al.

PHYSICAL REVIEW LETTERS (2019)

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Article Multidisciplinary Sciences

Non-reciprocal robotic metamaterials

Martin Brandenbourger et al.

NATURE COMMUNICATIONS (2019)

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Article Physics, Multidisciplinary

Symmetry and Topology in Non-Hermitian Physics

Kohei Kawabata et al.

PHYSICAL REVIEW X (2019)

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Article Chemistry, Physical

Acoustic higher-order topological insulator on a kagome lattice

Haoran Xue et al.

NATURE MATERIALS (2019)

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Article Chemistry, Physical

Observation of higher-order topological acoustic states protected by generalized chiral symmetry

Xiang Ni et al.

NATURE MATERIALS (2019)

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Article Materials Science, Multidisciplinary

Generalized bulk-edge correspondence for non-Hermitian topological systems

Ken-Ichiro Imura et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Non-Bloch topological invariants in a non-Hermitian domain wall system

Tian-Shu Deng et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Quantization of fractional corner charge in Cn-symmetric higher-order topological crystalline insulators

Wladimir A. Benalcazar et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Bulk-boundary correspondence in a non-Hermitian system in one dimension with chiral inversion symmetry

L. Jin et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Inversion symmetric non-Hermitian Chern insulator

H. C. Wu et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Non-Hermitian systems and topology: A transfer-matrix perspective

Flore K. Kunst et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Anatomy of skin modes and topology in non-Hermitian systems

Ching Hua Lee et al.

PHYSICAL REVIEW B (2019)

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Article Physics, Multidisciplinary

Probing non-Hermitian skin effect and non-Bloch phase transitions

Stefano Longhi

PHYSICAL REVIEW RESEARCH (2019)

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Article Materials Science, Multidisciplinary

Topology and observables of the non-Hermitian Chern insulator

Mark R. Hirsbrunner et al.

PHYSICAL REVIEW B (2019)

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Article Materials Science, Multidisciplinary

Interplay of non-Hermitian skin effects and Anderson localization in nonreciprocal quasiperiodic lattices

Hui Jiang et al.

PHYSICAL REVIEW B (2019)

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Review Physics, Applied

Topological phases in acoustic and mechanical systems

Guancong Ma et al.

NATURE REVIEWS PHYSICS (2019)

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Review Physics, Multidisciplinary

Non-Hermitian physics and PT symmetry

Ramy El-Ganainy et al.

NATURE PHYSICS (2018)

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Article Physics, Multidisciplinary

Biorthogonal Bulk-Boundary Correspondence in Non-Hermitian Systems

Flore K. Kunst et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Multidisciplinary Sciences

Observation of a phononic quadrupole topological insulator

Marc Serra-Garcia et al.

NATURE (2018)

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Article Multidisciplinary Sciences

A quantized microwave quadrupole insulator with topologically protected corner states

Christopher W. Peterson et al.

NATURE (2018)

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Article Physics, Multidisciplinary

Topolectrical-circuit realization of topological corner modes

Stefan Imhof et al.

NATURE PHYSICS (2018)

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Article Physics, Multidisciplinary

Edge States and Topological Invariants of Non-Hermitian Systems

Shunyu Yao et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Physics, Multidisciplinary

Fragile Topology and Wannier Obstructions

Hoi Chun Po et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Physics, Multidisciplinary

Simultaneous Observation of a Topological Edge State and Exceptional Point in an Open and Non-Hermitian Acoustic System

Weiwei Zhu et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Physics, Multidisciplinary

Non-Hermitian Chern Bands

Shunyu Yao et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Physics, Multidisciplinary

Topological Phases of Non-Hermitian Systems

Zongping Gong et al.

PHYSICAL REVIEW X (2018)

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Article Physics, Multidisciplinary

Photonic Topological Insulating Phase Induced Solely by Gain and Loss

Kenta Takata et al.

PHYSICAL REVIEW LETTERS (2018)

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Article Physics, Multidisciplinary

Phase-Dependent Chiral Transport and Effective Non-Hermitian Dynamics in a Bosonic Kitaev-Majorana Chain

A. McDonald et al.

PHYSICAL REVIEW X (2018)

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Article Materials Science, Multidisciplinary

Recipe for creating an arbitrary number of Floquet chiral edge states

Longwen Zhou et al.

PHYSICAL REVIEW B (2018)

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Article Materials Science, Multidisciplinary

Anomalous helical edge states in a non-Hermitian Chern insulator

Kohei Kawabata et al.

PHYSICAL REVIEW B (2018)

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Article Materials Science, Multidisciplinary

Hall conductance of a non-Hermitian Chern insulator

Yu Chen et al.

PHYSICAL REVIEW B (2018)

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Article Materials Science, Multidisciplinary

Second-order topological insulators and superconductors with an order-two crystalline symmetry

Max Geier et al.

PHYSICAL REVIEW B (2018)

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Article Physics, Multidisciplinary

Observation of topological edge states in parity-time-symmetric quantum walks

L. Xiao et al.

NATURE PHYSICS (2017)

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Article Physics, Multidisciplinary

Experimental observation of optical Weyl points and Fermi arc-like surface states

Jiho Noh et al.

NATURE PHYSICS (2017)

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Article Multidisciplinary Sciences

Quantized electric multipole insulators

Wladimir A. Benalcazar et al.

SCIENCE (2017)

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Article Multidisciplinary Sciences

Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials

Hannes Hubener et al.

NATURE COMMUNICATIONS (2017)

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