Non-equilibrium dynamics of a system with Quantum Frustration
Mesoscale and Nanoscale Physics
2015-06-15 v1 Quantum Physics
Abstract
Using flow equations, equilibrium and non-equilibrium dynamics of a two-level system are investigated, which couples via non-commuting components to two independent oscillator baths. In equilibrium the two-level energy splitting is protected when the TLS is coupled symmetrically to both bath. A critical asymmetry angle separates the localized from the delocalized phase. On the other hand, real-time decoherence of a non-equilibrium initial state is for a generic initial state faster for a coupling to two baths than for a single bath.
Cite
@article{arxiv.1304.1910,
title = {Non-equilibrium dynamics of a system with Quantum Frustration},
author = {Heiner Kohler and Andreas Hackl and Stefan Kehrein},
journal= {arXiv preprint arXiv:1304.1910},
year = {2015}
}
Comments
22 pages, 9 figures