Artículos de revistas
Kinetics and thermodynamics of a driven open quantum system
Fecha
2017Registro en:
Physical Review E 96, 052132 (2017)
10.1103/PhysRevE.96.052132
Autor
Thingna, Juzar
Barra de la Guarda, Felipe
Esposito, Massimiliano
Institución
Resumen
Redfield theory provides a closed kinetic description of a quantum system in weak contact with a very dense reservoir. Landau-Zener theory does the same for a time-dependent driven system in contact with a sparse reservoir. Using a simple model, we analyze the validity of these two theories by comparing their predictions with exact numerical results. We show that despite their a priori different range of validity, these two descriptions can give rise to an identical quantum master equation. Both theories can be used for a nonequilibrium thermodynamic description, which we show is consistent with exact thermodynamic identities evaluated in the full system-reservoir space. We emphasize the importance of properly accounting for the system-reservoir interaction energy and of operating in regimes where the reservoir can be considered as close to ideal.