Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912789563441152 |
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| author | Hu, Yu-Min Wang, Zijian Lian, Biao Wang, Zhong |
| author_facet | Hu, Yu-Min Wang, Zijian Lian, Biao Wang, Zhong |
| contents | 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. Despite the complexity arising from many-body interactions, the local gauge symmetry enables the exact construction of a steady state that displays 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_03534 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model Hu, Yu-Min Wang, Zijian Lian, Biao Wang, Zhong Quantum Physics Mesoscale and Nanoscale Physics Quantum Gases Strongly Correlated Electrons Optics 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. Despite the complexity arising from many-body interactions, the local gauge symmetry enables the exact construction of a steady state that displays 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. |
| title | Many-Body Non-Hermitian Skin Effect with Exact Steady States in the Dissipative Quantum Link Model |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Quantum Gases Strongly Correlated Electrons Optics |
| url | https://arxiv.org/abs/2502.03534 |