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cond-mat.stat-mech2022★ 12 cited
The laws of thermodynamics for quantum dissipative systems: A quasi-equilibrium Helmholtz energy approach
Shoki Koyanagi, Yoshitaka Tanimura
Using the quasi-equilibrium Helmholtz energy (qHE), defined as the thermodynamic work in a quasi-static process, we investigate the thermal properties of both an isothermal process…
cond-mat.stat-mech2022★ 22 cited
Numerically "exact" simulations of a quantum Carnot cycle: Analysis using thermodynamic work diagrams
Shoki Koyanagi, Yoshitaka Tanimura
We investigate the efficiency of a quantum Carnot engine based on open quantum dynamics theory. The model includes time-dependent external fields for the subsystems controlling the…