Interaction induced bi-skin effect in an exciton-polariton system

Abstract

The non-Hermitian skin effect can be realized through asymmetric hopping between forward and backward directions, where all the modes of the system are localized at one edge of a finite 1D lattice. However, achieving such an asymmetric hopping in optical systems is far from trivial. Here we show theoretically that in a finite chain of 1D exciton-polariton micropillars with symmetric hopping, the inherent non-linearity of the system can exhibit a bi-skin effect, where the modes of the system are localized at the two edges of the system. To show the topological origin of such modes, we calculate the winding number.

References in corpus (17)

• Quantum fluids of light
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• Efficient Light Funneling based on the non-Hermitian Skin Effect
• Exciton-polariton condensates
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• New topological invariants in non-Hermitian systems
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• Topological Polaritons and Excitons in Garden Variety Systems
• Non-Hermitian second-order skin and topological modes
• Non-Bloch band theory in bosonic Bogoliubov-de Gennes systems
• Non-reciprocal transport of Exciton-Polaritons in a non-Hermitian chain
• Anti-chiral edge states in an exciton polariton strip
• Non-Bloch band theory and bulk-edge correspondence in non-Hermitian systems
• Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates
• Non-perturbative Breakdown of Bloch's Theorem and Hermitian Skin Effects

Cited by in corpus (16)

• Non-trivial point-gap topology and non-Hermitian skin effect in photonic crystals
• From the topological spin-Hall effect to the non-Hermitian skin effect in an elliptical micropillar chain
• Amplification of quantum signals by the non-Hermitian skin effect
• Generalized Quantum Geometric Tensor in a Non-Hermitian Exciton-Polariton System
• Non-reciprocal Exciton-Polariton Ring Lattices
• Dynamical suppression of many-body non-Hermitian skin effect in Anyonic systems
• Non-Hermitian topological exciton-polariton corner modes
• Symmetric non-Hermitian skin effect with emergent nonlocal correspondence
• Polariton vortex Chern insulator
• Spin-polarized antichiral exciton-polariton edge states
• Grating-based microcavity with independent control of resonance energy and linewidth for non-Hermitian polariton system
• Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates
• Switchable Non-Hermitian Skin Effect in Bogoliubov Modes
• Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
• Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model
• Non-Hermitian synthetic lattices with light-matter coupling