Observation of non-Hermitian antichiral edge currents
arXiv:2305.17853 · doi:10.1038/s41377-024-01700-1
Abstract
Non-Hermitian topological photonics is of great interest in bridging topological matter with gain/dissipation engineering in optics. A key problem in this direction is the interplay between the effective gauge potential and the non-Hermiticity. Here we tackle this problem in a synthetic non-Hermitian Hall ladder and experimentally observe antichiral edge currents (ACECs) of photons, by tuning the locally uniform effective magnetic flux and the on-site gain/loss. Such ACECs provide a topological method to probe the signatures of the non-Hermitian skin effect (NHSE) from steady-state bulk dynamics. The universality of this method is verified by its generalization to three dimensions. This study paves a way to investigate exotic non-Hermitian topological physics and has potential applications in topological photonics engineering.
References in corpus (58)
- Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry
- Topological Photonics
- Topological Photonics
- Nonreciprocal light transmission in parity-time-symmetric whispering-gallery microcavities
- Edge states and topological invariants of non-Hermitian systems
- Unidirectional Invisibility induced by PT-Symmetric Periodic Structures
- Exceptional Topology of Non-Hermitian Systems
- Imaging topological edge states in silicon photonics
- Biorthogonal Bulk-Boundary Correspondence in Non-Hermitian Systems
- Topological Origin of Non-Hermitian Skin Effects
- Anomalous edge state in a non-Hermitian lattice
- Non-Bloch Band Theory of Non-Hermitian Systems
- Correspondence between winding numbers and skin modes in non-hermitian systems
- Observation of bulk boundary correspondence breakdown in topolectrical circuits
- Observation of non-Hermitian bulk-boundary correspondence in quantum dynamics
- Efficient Light Funneling based on the non-Hermitian Skin Effect
- 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
- Observation of non-Hermitian topology and its bulk-edge correspondence in an active mechanical metamaterial
- Observation of the Meissner effect with ultracold atoms in bosonic ladders
- Non-reciprocal robotic metamaterials
- Non-Hermitian Topological Invariants in Real Space
- Observation of Non-Hermitian Skin Effect and Topology in Ultracold Atoms
- Photonic Topological Insulator in Synthetic Dimensions
- Probing non-Hermitian Skin Effect and non-Bloch Phase Transitions
- Acoustic non-Hermitian skin effect from twisted winding topology
- Observation of arbitrary topological windings of a non-Hermitian band
- Non-Hermitian skin modes induced by on-site dissipations and chiral tunneling effect
- Photonic Topological Insulating Phase Induced Solely by Gain and Loss
- Topology-Induced Spontaneous Non-reciprocal Pumping in Cold-Atom Systems with Loss
- A single photonic cavity with two independent physical synthetic dimensions
- Efficient and low-noise single-photon-level frequency conversion interfaces using silicon nanophotonics
- Non-Hermitian Morphing of Topological Modes
- Chiral Ladders and the Edges of Chern Insulators
- Experimental band structure spectroscopy along a synthetic dimension
- Antichiral edge states in a modified Haldane nanoribbon
- Observation of photonic antichiral edge states
- Non-Hermitian chiral phononics through optomechanically-induced squeezing
- Synthetic space with arbitrary dimensions in a few rings undergoing dynamic modulation
- Tutorial: synthetic frequency dimensions in dynamically modulated ring resonators
- Complex Skin Modes in Non-Hermitian Coupled Laser Arrays
- Observation of momentum-space chiral edge currents in room-temperature atoms
- Observation of Antichiral Edge States in a Circuit Lattice
- Creating boundaries along a synthetic frequency dimension
- Non-Hermitian Photonic Lattices: tutorial
- Antihelical Edge States in Two-dimensional Photonic Topological Metals
- Anti-chiral edge states in an exciton polariton strip
- Anti-chiral edge states in Heisenberg ferromagnet on a honeycomb lattice
- Programmable large-scale simulation of bosonic transport in optical synthetic frequency lattices
- Multi-dimensional band structure spectroscopy in the synthetic frequency dimension
- Mirror-induced reflection in the frequency domain
- Anti-chiral edge states and hinge states based on the Haldane model
- Antichiral states in twisted graphene multilayers
- Unidirectional frequency conversion in microring resonators for on-chip frequency-multiplexed single-photon sources
- Copropagating edge states produced by the interaction between electrons and chiral phonons in two-dimensional materials
- Localization of chiral edge states by the non-Hermitian skin effect
- Chip-scale Simulations in a Quantum-correlated Synthetic Space
- Realization of exceptional points along a synthetic orbital angular momentum dimension
Cited by in corpus (8)
- A comprehensive review on developments of synthetic dimensions
- Probing Bulk Band Topology from Time Boundary Effect in Synthetic Dimension
- Construction of various time-dependent Hamiltonians on a single photonic chip
- Creating high-dimensional topological physics using a single ring resonator
- Observation of Braid-Protected Unpaired Exceptional Points
- Experimental observation of energy-band Riemann surface
- Dynamical transition in non-Hermitian Chern insulator
- Dynamics of interacting bosons in a two-leg ring ladder with artificial magnetic flux and ac-driven modulations