Generalized Bloch equations for a strongly driven tunneling system
Peter Neu (M.I.T.), Jochen Rau (ECT* Trento)
TL;DR
This paper derives generalized Bloch equations for a strongly driven two-level tunneling system coupled to a super-Ohmic heat bath, enabling analysis of phonon effects on dynamical localization.
Contribution
It introduces a novel set of nonlinear integro-differential equations to describe the dynamics of such quantum systems under strong driving and weak environmental coupling.
Findings
Phonons significantly influence dynamical localization.
The generalized equations capture complex system-bath interactions.
New insights into driven quantum tunneling dynamics.
Abstract
Using the Robertson projection operator formalism, we derive generalized Bloch equations which describe the dynamics of a biased two-level tunneling system strongly driven by an external field and weakly coupled to a super-Ohmic heat bath. The generalized Bloch equations constitute a set of coupled nonlinear integro-differential equations. With their help we investigate the influence of phonons on the phenomenon of dynamical localization.
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