Environment-Governed Dynamics in Driven Quantum Systems

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Date: 
2013-04-12
Author(s): 

S. Gasparinetti, P. Solinas, S. Pugnetti, R. Fazio, and J.P. Pekola

Reference: 

Phys. Rev. Lett. 110, 150403 (2013)

We show that the dynamics of a driven quantum system weakly coupled to the environment can exhibit two distinct regimes. While the relaxation basis is usually determined by the system+drive Hamiltonian (system-governed dynamics), we find that under certain conditions it is determined by specific features of the environment, such as, the form of the coupling operator (environment-governed dynamics). We provide an effective coupling parameter describing the transition between the two regimes and discuss how to observe the transition in a superconducting charge pump.