Powering a quantum clock with a non-equilibrium steady state
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915069108944896 |
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| author | Nello, Daniele Silva, Alessandro |
| author_facet | Nello, Daniele Silva, Alessandro |
| contents | We propose powering a quantum clock with the non-thermal resources offered by the stationary state of an integrable quantum spin chain, driven out of equilibrium by a quench in a parameter of our choice. Analyzing the bias conditions of the clock, we establish a direct connection with the negativity of the steady-state response function. Using experimentally relevant examples of quantum spin chains, we suggest crossing a phase transition point is crucial for optimal performance. The coupling takes place through a global observable and, even in this case, the battery lifespan is found to be extensive in its size. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_13107 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Powering a quantum clock with a non-equilibrium steady state Nello, Daniele Silva, Alessandro Quantum Physics Mesoscale and Nanoscale Physics Statistical Mechanics We propose powering a quantum clock with the non-thermal resources offered by the stationary state of an integrable quantum spin chain, driven out of equilibrium by a quench in a parameter of our choice. Analyzing the bias conditions of the clock, we establish a direct connection with the negativity of the steady-state response function. Using experimentally relevant examples of quantum spin chains, we suggest crossing a phase transition point is crucial for optimal performance. The coupling takes place through a global observable and, even in this case, the battery lifespan is found to be extensive in its size. |
| title | Powering a quantum clock with a non-equilibrium steady state |
| topic | Quantum Physics Mesoscale and Nanoscale Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2412.13107 |