By use of an effective Hamiltonian method in thermo field dynamics, nonequilibrium phenomena in two-level systems coupled with a reservoir are studied. It is explicitly demonstrated that the system approaches a canonical equilibrium state specified by the temperature of the reservoir and by the Lagrangian multipliers corresponding to the conservation laws preserved in the interaction between the reservoir and the system.
Reservoir effects in two-level models
ROMANO, Alfonso
1991-01-01
Abstract
By use of an effective Hamiltonian method in thermo field dynamics, nonequilibrium phenomena in two-level systems coupled with a reservoir are studied. It is explicitly demonstrated that the system approaches a canonical equilibrium state specified by the temperature of the reservoir and by the Lagrangian multipliers corresponding to the conservation laws preserved in the interaction between the reservoir and the system.File in questo prodotto:
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