High-Temperature Quantum Oscillations of a Non-equilibrium Non-Fermi Liquid
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909976008589312 |
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| author | Matsyshyn, Oles Shi, Li-kun Villadiego, Inti Sodemann |
| author_facet | Matsyshyn, Oles Shi, Li-kun Villadiego, Inti Sodemann |
| contents | A periodically driven Fermi gas coupled to a simple boson bath reaches a non-equilibrium steady-state occupation with sharp non-analyticities at certain momenta. Here, we demonstrate that these non-analyticities behave as emergent Fermi surfaces by showing that they give rise to quantum oscillations of observables with a period controlled by the effective Fermi surface area enclosed by these non-analyticities. However, these oscillations have several striking differences with standard equilibrium quantum oscillations. For example, they remain non-analytic at finite temperatures, their amplitude can survive up to extremely high temperatures comparable to the frequency of the drive, and they can display non-monotonic temperature dependence completely at odds with standard Lifshits-Kosevich behavior. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2512_21763 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-Temperature Quantum Oscillations of a Non-equilibrium Non-Fermi Liquid Matsyshyn, Oles Shi, Li-kun Villadiego, Inti Sodemann Mesoscale and Nanoscale Physics Quantum Gases A periodically driven Fermi gas coupled to a simple boson bath reaches a non-equilibrium steady-state occupation with sharp non-analyticities at certain momenta. Here, we demonstrate that these non-analyticities behave as emergent Fermi surfaces by showing that they give rise to quantum oscillations of observables with a period controlled by the effective Fermi surface area enclosed by these non-analyticities. However, these oscillations have several striking differences with standard equilibrium quantum oscillations. For example, they remain non-analytic at finite temperatures, their amplitude can survive up to extremely high temperatures comparable to the frequency of the drive, and they can display non-monotonic temperature dependence completely at odds with standard Lifshits-Kosevich behavior. |
| title | High-Temperature Quantum Oscillations of a Non-equilibrium Non-Fermi Liquid |
| topic | Mesoscale and Nanoscale Physics Quantum Gases |
| url | https://arxiv.org/abs/2512.21763 |