Dynamical regimes of dissipative quantum systems
arXiv:1309.7860 · doi:10.1103/PhysRevB.88.241110
Abstract
We reveal several distinct regimes of the relaxation dynamics of a small quantum system coupled to an environment within the plane of the dissipation strength and the reservoir temperature. This is achieved by discriminating between coherent dynamics with damped oscillatory behavior on all time scales, partially coherent behavior being nonmonotonic at intermediate times but monotonic at large ones, and purely monotonic incoherent decay. Surprisingly, elevated temperature can render the system `more coherent' by inducing a transition from the partially coherent to the coherent regime. This provides a refined view on the relaxation dynamics of open quantum systems.
5 pages, 3 figures
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- Power-law approach to steady state in open lattices of non-interacting electrons
- The Ohmic two-state system from the perspective of the interacting resonant level model: Thermodynamics and transient dynamics
- Transport properties of fully screened Kondo models
- Diagrammatic description of a system coupled strongly to a bosonic bath
- Quench dynamics of a dissipative Rydberg gas in the classical and quantum regime
- Floquet Renormalization Group Approach to the Periodically Driven Kondo Model