Non-Hermitian skin effect induced by Rashba-Dresselhaus spin-orbit coupling

Abstract

1D chains with non-reciprocal tunneling realizing the non-Hermitian skin effect (NHSE) have attracted considerable interest in the last years whereas their experimental realization in real space remains limited to a few examples. In this work, we propose a new generic way of implementing non-reciprocity based on a combination of the Rashba-Dresshlauss spin-orbit coupling, existing for electrons, cold atoms, and photons, and a lifetime imbalance between two spin components. We show that one can realize the Hatano-Nelson model, the non-Hermitian Su-Schrieffer-Heeger model, and even observe the NHSE in a 1D potential well without the need for a lattice. We further demonstrate the practical feasibility of this proposal by considering the specific example of a photonic liquid crystal microcavity. This platform allows one to switch on and off the NHSE by applying an external voltage to the microcavity.

References in corpus (29)

• Efficient Light Funneling based on the non-Hermitian Skin Effect
• Edge Modes, Degeneracies, and Topological Numbers in Non-Hermitian Systems
• An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
• Emergence of the persistent spin helix in semiconductor quantum wells
• Topological phases in the non-Hermitian Su-Schrieffer-Heeger model
• Observation of hybrid higher-order skin-topological effect in non-Hermitian topolectrical circuits
• Acoustic non-Hermitian skin effect from twisted winding topology
• Observation of higher-order non-Hermitian skin effect
• Observation of arbitrary topological windings of a non-Hermitian band
• Polariton $\mathbb{Z}$ Topological Insulator
• Non-Hermitian Morphing of Topological Modes
• Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells Measured by Spin Photocurrents
• Non-trivial point-gap topology and non-Hermitian skin effect in photonic crystals
• Complex Skin Modes in Non-Hermitian Coupled Laser Arrays
• Non-reciprocal transport of Exciton-Polaritons in a non-Hermitian chain
• Non-Hermitian skin effect beyond the tight-binding models
• Engineering Non-Hermitian Skin Effect with Band Topology in Ultracold Gases
• Non-Hermitian waves in a continuous periodic model and application to photonic crystals
• Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates
• Annihilation of exceptional points from different Dirac valleys in a 2D photonic system
• Geometry-dependent skin effects in reciprocal photonic crystals
• Theoretical Prediction of Non-Hermitian Skin Effect in Ultracold Atom Systems
• From the topological spin-Hall effect to the non-Hermitian skin effect in an elliptical micropillar chain
• Response strengths of open systems at exceptional points
• Nonadiabatic robust excitation transfer assisted by an imaginary gauge field
• Non-reciprocal Exciton-Polariton Ring Lattices
• Exceptional degeneracies in non-Hermitian Rashba semiconductors
• Non-Hermitian topological exciton-polariton corner modes
• Non-Hermitian skin effect in a spin-orbit-coupled Bose-Einstein condensate

Cited by in corpus (6)

• Non-Bloch band theory for non-Hermitian continuum systems
• Non-Hermitian minimal Kitaev chains
• Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
• Supercurrent from the imaginary part of the Andreev levels in non-Hermitian Josephson junctions
• Non-Hermitian skin effect and electronic nonlocal transport
• Floquet multiple exceptional points with higher-order skin effect