Observation of non-Hermitian edge burst in quantum dynamics

Abstract

The non-Hermitian skin effect, by which the eigenstates of Hamiltonian are predominantly localized at the boundary, has revealed a strong sensitivity of non-Hermitian systems to the boundary condition. Here we experimentally observe a striking boundary-induced dynamical phenomenon known as the non-Hermitian edge burst, which is characterized by a sharp boundary accumulation of loss in non-Hermitian time evolutions. In contrast to the eigenstate localization, the edge burst represents a generic non-Hermitian dynamical phenomenon that occurs in real time. Our experiment, based on photonic quantum walks, not only confirms the prediction of the phenomenon, but also unveils its complete space-time dynamics. Our observation of edge burst paves the way for studying the rich real-time dynamics in non-Hermitian topological systems.

8 pages, 4 figures

References in corpus (32)

• Edge states and topological invariants of non-Hermitian systems
• Exceptional Topology of Non-Hermitian Systems
• Non-Hermitian Physics
• Symmetry and Topology in Non-Hermitian Physics
• Biorthogonal Bulk-Boundary Correspondence in Non-Hermitian Systems
• Topological Origin of Non-Hermitian Skin Effects
• Quantum Computation and Decision Trees
• Anomalous edge state in a non-Hermitian lattice
• Non-Bloch Band Theory of Non-Hermitian Systems
• Universal computation by quantum walk
• Correspondence between winding numbers and skin modes in non-hermitian systems
• Non-Hermitian Chern bands
• Observation of bulk boundary correspondence breakdown in topolectrical circuits
• Observation of non-Hermitian bulk-boundary correspondence in quantum dynamics
• Anatomy of skin modes and topology in non-Hermitian systems
• Non-Hermitian robust edge states in one-dimension: Anomalous localization and eigenspace condensation at exceptional points
• Non-Hermitian skin effect and chiral damping in open quantum systems
• Observation of non-Hermitian topology and its bulk-edge correspondence in an active mechanical metamaterial
• Probing non-Hermitian Skin Effect and non-Bloch Phase Transitions
• Higher-order non-Hermitian skin effect
• A single photonic cavity with two independent physical synthetic dimensions
• Non-Hermitian Morphing of Topological Modes
• Observation of non-Bloch parity-time symmetry and exceptional points
• Second-order topological non-Hermitian skin effects
• Non-Bloch topological invariants in a non-Hermitian domain-wall system
• Topological edge states of interacting photon pairs emulated in a topolectrical circuit
• Non-Hermitian Edge Burst
• Non-Hermitian skin clusters from strong interactions
• Simulation of interaction-induced chiral topological dynamics on a digital quantum computer
• Quantum dynamics on a lossy non-Hermitian lattice
• Non-Hermitian edge burst without skin localizations
• Topological Dissipative Photonics and Topological Insulator Lasers in Synthetic Time-Frequency Dimensions

Cited by in corpus (17)

• Activating non-Hermitian skin modes by parity-time symmetry breaking
• Non-Bloch band theory for non-Hermitian continuum systems
• Braiding Topology of Non-Hermitian Open-Boundary Bands
• Harnessing Nonlinearity to Tame Wave Dynamics in Nonreciprocal Active Systems
• General theory for infernal points in non-Hermitian systems
• Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model
• Real-time edge dynamics of non-Hermitian lattices
• Measuring Non-Hermitian Topological Invariants Directly from Quench Dynamics
• Theory for the spectral splitting exponent of exceptional points
• Unveiling Non-Hermitian Spectral Topology in Hyperbolic Lattices with Non-Abelian Translation Symmetry
• Non-Hermitian Delocalization Induced by Residue Imaginary Velocity
• Non-Hermitian wave-packet dynamics and its realization within a non-Hermitian chiral cavity
• Breakdown of Non-Bloch Bulk-Boundary Correspondence and Emergent Topology in Floquet Non-Hermitian Systems
• 1D Spontaneous Symmetry Breaking in thermal equilibrium via Non-Hermitian Construction
• Topology and edge modes surviving criticality in non-Hermitian Floquet systems
• Winding-control mechanism of non-Hermitian systems
• Non-Hermitian second-order topological insulator with point gap