scholarly journals Open quantum systems beyond Fermi's golden rule: Diagrammatic expansion of the steady-state time-convolutionless master equations

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Michael Sven Ferguson ◽  
Oded Zilberberg ◽  
Gianni Blatter
Keyword(s):  
Steady State ◽  
Open Quantum Systems ◽  
Golden Rule ◽  
Quantum Systems ◽  
Master Equations ◽  
State Time ◽  
Open Quantum ◽  
Fermi's Golden Rule ◽  
Steady State Time ◽  
Fermi’S Golden Rule

scholarly journals Perturbation Analysis of Quantum Reset Models

2021 ◽  
Vol 183 (1) ◽  
Author(s):  
Géraldine Haack ◽  
Alain Joye
Keyword(s):  
Steady State ◽  
Perturbation Analysis ◽  
Open Quantum Systems ◽  
Quantum Systems ◽  
Markov Semigroup ◽  
Coupling Constant ◽  
Coupling Term ◽  
Open Quantum ◽  
Effective Dynamics ◽  
A Chain

AbstractThis paper is devoted to the analysis of Lindblad operators of Quantum Reset Models, describing the effective dynamics of tri-partite quantum systems subject to stochastic resets. We consider a chain of three independent subsystems, coupled by a Hamiltonian term. The two subsystems at each end of the chain are driven, independently from each other, by a reset Lindbladian, while the center system is driven by a Hamiltonian. Under generic assumptions on the coupling term, we prove the existence of a unique steady state for the perturbed reset Lindbladian, analytic in the coupling constant. We further analyze the large times dynamics of the corresponding CPTP Markov semigroup that describes the approach to the steady state. We illustrate these results with concrete examples corresponding to realistic open quantum systems.

scholarly journals Perturbation theory for open quantum systems at the steady state

2018 ◽  
Vol 10 ◽  
pp. 353-355 ◽  
Author(s):  
Edgar A. Gómez ◽  
Jorge David Castaño-Yepes ◽  
Saravana Prakash Thirumuruganandham
Keyword(s):  
Perturbation Theory ◽  
Steady State ◽  
Open Quantum Systems ◽  
Quantum Systems ◽  
Open Quantum
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