Theoretical Prediction of Non-Hermitian Skin Effect in Ultracold Atom Systems

Abstract

Non-Hermitian skin effect, which refers to the phenomenon that an extensive number of eigenstates are localized at the boundary, has been widely studied in lattice models and experimentally observed in several classical systems. In this work, we predict that the existence of the non-Hermitian skin effect in the dissipative ultracold fermions with spin-orbit coupling, a continuous model that has been implemented by the Hong-Kong group in a recent experiment. This skin effect is robust against the variation of external parameters and trapping potentials. We further reveal a dynamic sticky effect in our system, which has a common physical origin with the non-Hermitian skin effect. Our work paves the way for studying novel physical responses of non-Hermitian skin effect in quantum systems.

26 pages,19 figures

References in corpus (25)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
• Topological Origin of Non-Hermitian Skin Effects
• Efficient Light Funneling based on the non-Hermitian Skin Effect
• Single-Spin Addressing in an Atomic Mott Insulator
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• Observation of antiferromagnetic correlations in the Hubbard model with ultracold atoms
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• Acoustic non-Hermitian skin effect from twisted winding topology
• Observation of higher-order non-Hermitian skin effect
• Homogeneous Atomic Fermi Gases
• Observation of non-Bloch parity-time symmetry and exceptional points
• Direct imaging of topological edge states in cold-atom systems
• Topological orbital ladders
• Skin effect and winding number in disordered non-Hermitian systems
• Guided accumulation of active particles by topological design of a second-order skin effect
• Geometric Response and Disclination-Induced Skin Effects in Non-Hermitian Systems
• Dislocation Non-Hermitian Skin Effect
• Quantized classical response from spectral winding topology
• Quantum master equation with balanced gain and loss
• Symmetry Indicators for Inversion-Symmetric Non-Hermitian Topological Band Structures

Cited by in corpus (19)

• Topological Non-Hermitian skin effect
• Two-dimensional non-Hermitian skin effect in an ultracold Fermi gas
• Geometric Origin of Non-Bloch PT Symmetry Breaking
• Geometry-dependent skin effects in reciprocal photonic crystals
• Non-Hermitian skin effect in one-dimensional interacting Bose gas
• Occupation-dependent particle separation in one-dimensional non-Hermitian lattices
• Anatomy of open-boundary bulk in multiband non-Hermitian systems
• Non-Hermitian skin effect induced by Rashba-Dresselhaus spin-orbit coupling
• Non-Bloch band theory for non-Hermitian continuum systems
• Non-Hermitian Skin Effect in Periodically-Driven Dissipative Ultracold Atoms
• Geometry-dependent skin effect and anisotropic Bloch oscillations in a non-Hermitian optical lattice
• Topological transitions in dissipatively coupled Su-Schrieffer-Heeger models
• Skin Effect Induced Anomalous Dynamics from Charge-Fluctuating Initial States
• Harnessing Nonlinearity to Tame Wave Dynamics in Nonreciprocal Active Systems
• Optical pumping through the Liouvillian skin effect
• Gain engineering and atom lasing in a topological edge state in synthetic dimensions
• Unified Bulk-Entanglement Correspondence in Non-Hermitian Systems
• Solution of Wave Acceleration and Non-Hermitian Jump in Nonreciprocal Lattices
• Winding-control mechanism of non-Hermitian systems