Dissipative dynamics in a quantum bistable system: Crossover from weak to strong damping

URN to cite this document:: urn:nbn:de:bvb:355-epub-324595
DOI to cite this document:: 10.5283/epub.32459

Magazzù, Luca ; Valenti, Davide ; Spagnolo, Bernardo ; Grifoni, Milena

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Date of publication of this fulltext: 21 Sep 2015 14:05

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Abstract

The dissipative dynamics of a quantum bistable system coupled to a Ohmic heat bath is investigated beyond the spin-boson approximation. Within the path-integral approach to quantum dissipation, we propose an approximation scheme which exploits the separation of time scales between intra- and interwell (tunneling) dynamics. The resulting generalized master equation for the populations in a space ...