Quantum Otto cycle in the Anderson impurity model
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866917449595617280 |
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| author | Gatto, Salvatore Colla, Alessandra Breuer, Heinz-Peter Thoss, Michael |
| author_facet | Gatto, Salvatore Colla, Alessandra Breuer, Heinz-Peter Thoss, Michael |
| contents | We study the thermodynamic performance of a periodic quantum Otto cycle operating on the single-impurity Anderson model. Using a decomposition of the time-evolution generator based on the principle of minimal dissipation, combined with the numerically exact hierarchical equations of motion (HEOM) method, we analyze the operating regimes of the quantum thermal machine and investigate effects of Coulomb interactions, strong system-reservoir coupling, and energy level alignments. Our results show that Coulomb interaction can change the operating regimes and may lead to an enhancement of the efficiency. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_21546 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quantum Otto cycle in the Anderson impurity model Gatto, Salvatore Colla, Alessandra Breuer, Heinz-Peter Thoss, Michael Mesoscale and Nanoscale Physics Statistical Mechanics Quantum Physics We study the thermodynamic performance of a periodic quantum Otto cycle operating on the single-impurity Anderson model. Using a decomposition of the time-evolution generator based on the principle of minimal dissipation, combined with the numerically exact hierarchical equations of motion (HEOM) method, we analyze the operating regimes of the quantum thermal machine and investigate effects of Coulomb interactions, strong system-reservoir coupling, and energy level alignments. Our results show that Coulomb interaction can change the operating regimes and may lead to an enhancement of the efficiency. |
| title | Quantum Otto cycle in the Anderson impurity model |
| topic | Mesoscale and Nanoscale Physics Statistical Mechanics Quantum Physics |
| url | https://arxiv.org/abs/2601.21546 |