Effective Gibbs state for averaged observables

Abstract

We consider the effective Gibbs state for averaged observables. In particular, we perturbatively calculate the correspondent effective Hamiltonian. We show that there are a lot of similarities between this effective Hamiltonian and the mean force Hamiltonian. We also discuss a thermodynamic role of the information loss due to restriction of our measurement capabilities to such averaged observables.

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Cited by in corpus (6)

• Hamiltonian of mean force in the weak-coupling and high-temperature approximations and refined quantum master equations
• Time-convolutionless master equations for composite open quantum systems
• Effective Heisenberg equations for quadratic Hamiltonians
• Structure of the Hamiltonian of mean force
• On time-dependent projectors and on generalization of thermodynamical approach to open quantum systems
• Superoperator master equations for depolarizing dynamics