Dissipation induced ergodic-nonergodic transitions in finite-height mosaic Wannier-Stark lattices
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910540327026688 |
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| author | Jiang, Xiang-Ping Yang, Xuanpu Hu, Yayun Pan, Lei |
| author_facet | Jiang, Xiang-Ping Yang, Xuanpu Hu, Yayun Pan, Lei |
| contents | Recent research has observed the occurrence of pseudo-mobility edge (ME) within a modulated mosaic model incorporating the Wannier-Stark potential. This pseudo-ME, which signifies the critical energy that distinguishes between ergodic and weakly ergodic, or weakly ergodic and nonergodic states, is a crucial concept in comprehending the transport and localization phenomena in Wannier-Stark systems. Here we investigate the influence of dissipation on a finite-height mosaic Wannier-Stark lattice that features such pseudo-MEs by computing the steady state density matrix. Our findings indicate that particular dissipation can steer the system into specific states, regardless of its initial state, predominantly characterized by either ergodic or nonergodic states. This suggests that dissipation can be harnessed as a novel method for inducing transitions between these states and manipulating particle localization behaviors in disorder-free systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_17301 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dissipation induced ergodic-nonergodic transitions in finite-height mosaic Wannier-Stark lattices Jiang, Xiang-Ping Yang, Xuanpu Hu, Yayun Pan, Lei Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Statistical Mechanics Recent research has observed the occurrence of pseudo-mobility edge (ME) within a modulated mosaic model incorporating the Wannier-Stark potential. This pseudo-ME, which signifies the critical energy that distinguishes between ergodic and weakly ergodic, or weakly ergodic and nonergodic states, is a crucial concept in comprehending the transport and localization phenomena in Wannier-Stark systems. Here we investigate the influence of dissipation on a finite-height mosaic Wannier-Stark lattice that features such pseudo-MEs by computing the steady state density matrix. Our findings indicate that particular dissipation can steer the system into specific states, regardless of its initial state, predominantly characterized by either ergodic or nonergodic states. This suggests that dissipation can be harnessed as a novel method for inducing transitions between these states and manipulating particle localization behaviors in disorder-free systems. |
| title | Dissipation induced ergodic-nonergodic transitions in finite-height mosaic Wannier-Stark lattices |
| topic | Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Statistical Mechanics |
| url | https://arxiv.org/abs/2407.17301 |