Dynamical localization of a particle coupled to a two-level systems thermal reservoir

A. Villares Ferrer; C. Morais Smith

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arXiv · 0707.2213

Dynamical localization of a particle coupled to a two-level systems thermal reservoir

A. Villares Ferrer·C. Morais Smith

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Abstract

Using the functional-integral method, we investigate the effect of a two-level systems thermal reservoir on the single particle dynamics. We find that at low temperatures, within the sub-ohmic regime, the particle becomes {}``dynamically'' localized at long times due to an effective potential generated by the particle-reservoir interaction. This behavior is different from the one obtained for the usual bath of harmonic oscillators and is fundamentally related with the non-Markovian character of the dissipative process.

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A. Villares Ferrer, C. Morais Smith. 2007-07-15. Dynamical localization of a particle coupled to a two-level systems thermal reservoir. https://arxiv.org/abs/0707.2213

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