Ballistic Modes as a Source of Anomalous Charge Noise
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916641662566400 |
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| author | McCulloch, Ewan Vasseur, Romain Gopalakrishnan, Sarang |
| author_facet | McCulloch, Ewan Vasseur, Romain Gopalakrishnan, Sarang |
| contents | Steady-state currents generically occur both in systems with continuous translation invariance and in nonequilibrium settings with particle drift. In either case, thermal fluctuations advected by the current act as a source of noise for slower hydrodynamic modes. This noise is unconventional, since it is highly correlated along spacetime rays. We argue that, in quasi-one-dimensional geometries, the correlated noise from ballistic modes generically gives rise to anomalous full counting statistics (FCS) for diffusively spreading charges. We present numerical evidence for anomalous FCS in two settings: (1) a two-component continuum fluid, and (2) the totally asymmetric exclusion process (TASEP) initialized in a nonequilibrium state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_03412 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ballistic Modes as a Source of Anomalous Charge Noise McCulloch, Ewan Vasseur, Romain Gopalakrishnan, Sarang Statistical Mechanics Mesoscale and Nanoscale Physics Quantum Gases Strongly Correlated Electrons Steady-state currents generically occur both in systems with continuous translation invariance and in nonequilibrium settings with particle drift. In either case, thermal fluctuations advected by the current act as a source of noise for slower hydrodynamic modes. This noise is unconventional, since it is highly correlated along spacetime rays. We argue that, in quasi-one-dimensional geometries, the correlated noise from ballistic modes generically gives rise to anomalous full counting statistics (FCS) for diffusively spreading charges. We present numerical evidence for anomalous FCS in two settings: (1) a two-component continuum fluid, and (2) the totally asymmetric exclusion process (TASEP) initialized in a nonequilibrium state. |
| title | Ballistic Modes as a Source of Anomalous Charge Noise |
| topic | Statistical Mechanics Mesoscale and Nanoscale Physics Quantum Gases Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2407.03412 |