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quant-ph2026
Roles of the Internal Coupling: From Equilibrium to Non-Equilibrium Dynamics
Jingyi Gao, Naomichi Hatano
We identify the precise thermodynamic roles of internal coupling in quantum thermal machines by analyzing the quantum Otto cycle across thermalized Gibbs-state limit cycles (GSLC)…
quant-ph2025
Non-equilibrium Dynamics of Three-Level Absorption Refrigerator at Third-Order Liouvillian Exceptional Points
Jingyi Gao, Naomichi Hatano
We analyze the influence of Liouvillian exceptional points (LEPs) in the three-level quantum absorption refrigerator, putting emphasis on the non-equilibrium process before the con…
quant-ph2023
Maximum Power of Coupled-Qubit Otto Engines
Jingyi Gao, Naomichi Hatano
We put forward four schemes of coupled-qubit quantum Otto machine, a generalization of the single-qubit quantum Otto machine, based on work and heat transfer between an internal sy…