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Driving-Induced Symmetry Breaking in the Spin-Boson System

Adam, Holger ; Winterstetter, Manfred ; Grifoni, Milena ; Weiss, Ulrich


A symmetric dissipative two-state system is asymptotically completely delocalized independent of the initial state. We show that driving-induced localization at long times can take place when both the bias and tunneling coupling energy are harmonically modulated. Dynamical symmetry breaking on average occurs when the driving frequencies are odd multiples of some reference frequency. This effect ...


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