Related papers: Quantum Otto cycle in the Anderson impurity model

Quantum Otto cycle in the Anderson impurity model

URL: http://arxiv.org/abs/2601.21546v1
Date: Thu, 29 Jan 2026 11:02:04 GMT
Title: Quantum Otto cycle in the Anderson impurity model
Authors: Salvatore Gatto, Alessandra Colla, Heinz-Peter Breuer, Michael Thoss,
Abstract summary: We study the thermodynamic performance of a periodic quantum Otto cycle operating on the single-impurity Anderson model.<n>Our results show that Coulomb interaction can change the operating regimes and may lead to an enhancement of the efficiency.
Score: 39.146761527401424
License: http://creativecommons.org/licenses/by-nc-sa/4.0/
Abstract: 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.

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