Steepest Entropy Ascent for Two-State Systems with Slowly Varying Hamiltonians

Abstract

The Steepest Entropy Ascent approach is considered and applied to few-state systems. When the Hamiltonian of the system is time dependent, the principle of maximum entropy production can still be exploited; arguments to support this fact are given. In the limit of slowly varying Hamiltonians which allows for the adiabatic approximation for the unitary part of the dynamics, the system exhibits significant robustness to the thermalization process. Specific examples such as a spin in a rotating field and a generic two-state system undergoing an avoided crossing are considered.

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• Master equation approach to the three-state open Majorana model
• Degenerate Landau-Zener model in the presence of quantum noise
• Open multistate Majorana model