Many-body non-Hermitian skin effect with exact steady states in dissipative lattice gauge theory

• URL: http://arxiv.org/abs/2502.03534v1
• Date: Wed, 05 Feb 2025 19:00:04 GMT
• Title: Many-body non-Hermitian skin effect with exact steady states in dissipative lattice gauge theory
• Authors: Yu-Min Hu, Zijian Wang, Biao Lian, Zhong Wang,
• Abstract summary: We introduce a dissipative lattice gauge model that exhibits the many-body version of the non-Hermitian skin effect. Although the system involves many-body interactions, the local gauge symmetries offer a flexible approach to exactly constructing the steady state. Our approach can be generalized to realize a new type of many-body non-Hermitian skin effect, dubbed the hierarchical skin effect.
• Score: 4.043630643483977
• License:
• Abstract: We introduce a dissipative lattice gauge model that exhibits the many-body version of the non-Hermitian skin effect. The dissipative couplings between dynamical gauge fields on the lattice links and the surrounding environment generate chiral motions of particles residing on lattice sites. Although the system involves many-body interactions, the local gauge symmetries offer a flexible approach to exactly constructing the steady state that demonstrates the many-body non-Hermitian skin effect. Furthermore, our approach can be generalized to realize a new type of many-body non-Hermitian skin effect, dubbed the hierarchical skin effect, where different subsystem degrees of freedom exhibit boundary accumulation of multiple moments at different orders. Our findings can be readily observed by engineering dissipation in state-of-the-art lattice gauge simulators.

Related papers

• Non-Hermitian Effects in Dicke models [18.25522741939446]
  We study the manifestation of non-Hermitian effects in the Dicke model of light-matter interaction. Our findings deepen the understanding of non-Hermitian physics in light-matter interaction.
  arXiv  Detail & Related papers  (2024-11-13T06:30:10Z)
• Acoustic higher-order topological insulator from momentum-space nonsymmorphic symmetries [18.632378628061844]
  Momentum-space nonsymmorphic symmetries can modify the manifold of the Brillouin zone and lead to a variety of topological phenomena. We present an acoustic realization of higher-order topological insulators protected by a pair of momentum-space glide reflections.
  arXiv  Detail & Related papers  (2024-09-12T16:35:42Z)
• Non-Markovian skin effect [0.6581322884999681]
  We show how a non-Markovian environment can modify the Liouvillian skin effect. We identify that the skin-mode quantum coherence can only be generated when the coupling contains counter-rotating terms.
  arXiv  Detail & Related papers  (2024-03-21T15:02:50Z)
• Many-Body Non-Hermitian Skin Effect for Multipoles [0.0]
  We investigate the fate of the non-Hermitian skin effect in one-dimensional $textU(1)$ systems. Key feature of the non-Hermitian skin effect for $m$-pole conserving systems is the generation of an $(m+1)$th multipole moment. In addition, we explore the dynamical consequences of the $m$-pole skin effect, focusing on charge and entanglement propagation.
  arXiv  Detail & Related papers  (2024-01-08T19:00:01Z)
• Emergent non-Hermitian models [0.0]
  We use recently developed graph-theoretical tools to design non-Hermitian systems with non-trivial boundary phenomena. We show that eigenstates can simultaneously localize on either ends of the systems, with different localization lengths. We also predict the existence of various topological edge states, pinned at non-zero energies, with different exponential envelopes, depending on their energy.
  arXiv  Detail & Related papers  (2023-10-18T14:19:58Z)
• Collective non-Hermitian skin effect: Point-gap topology and the doublon-holon excitations in non-reciprocal many-body systems [1.565361244756411]
  Non-Hermitian skin effect, macroscopic collapse of bulk states to the boundary, has been extensively studied in various experimental platforms. Previous studies have shown that the Pauli exclusion principle suppresses the skin effect. We present a compelling counterexample by demonstrating the presence of the skin effect in doublon-holon excitations.
  arXiv  Detail & Related papers  (2023-09-14T17:43:16Z)
• Steady-state edge burst: From free-particle systems to interaction-induced phenomena [2.49649604985112]
  We find that the interplay between the non-Hermitian skin effect and the imaginary gap of lossy lattices results in the edge burst. We introduce a many-body open-system model in which the two-body loss generates an interaction-induced non-Hermitian skin effect. Our predictions are testable in state-of-the-art experimental platforms.
  arXiv  Detail & Related papers  (2023-06-14T18:00:03Z)
• Disorder-Induced Entanglement Phase Transitions in Non-Hermitian Systems with Skin Effects [20.88126933913389]
  We study the dynamics of a many-body state of free fermions in the paradigmatic Hatano-Nelson model with open boundaries. We find that the area-law behavior of the entanglement entropy in the pristine Hatano-Nelson model develops into a logarithmic scaling for small disorder strength.
  arXiv  Detail & Related papers  (2023-05-21T04:34:05Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing [58.720142291102135]
  We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices. We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation. We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
  arXiv  Detail & Related papers  (2022-03-28T14:55:28Z)
• Photon-mediated interactions near a Dirac photonic crystal slab [68.8204255655161]
  We develop a theory of dipole radiation near photonic Dirac points in realistic structures. We find positions where the nature of the collective interactions change from being coherent to dissipative ones. Our results significantly improve the knowledge of Dirac light-matter interfaces.
  arXiv  Detail & Related papers  (2021-07-01T14:21:49Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.