Asymmetry Induced Localization

• Authors: H. Kohler
• Languages of publication: EN

Abstracts

EN

We consider a two-level system, which couples via non-commuting operators to two independent oscillator baths. When the coupling is symmetric, the renormalized hopping matrix element is finite even for infinitely strong coupling strength. The two-level system is in a delocalized phase. For finite coupling strength a localization transition occurs for a critical asymmetry angle, which separates the localized from the delocalized phase. Using the method of flow equations we are able to monitor real time dynamics.

Keywords

EN

05.30.-d; 03.65.Yz; 05.45.Mt; 73.23.-b

Discipline

• 03.65.Yz: Decoherence; open systems; quantum statistical methods(see also 03.67.Pp in quantum information; for decoherence in Bose-Einstein condensates, see 03.75.Gg)
• 05.30.-d: Quantum statistical mechanics(for quantum fluids aspects, see 67.10.Fj)
• 73.23.-b: Electronic transport in mesoscopic systems
• 05.45.Mt: Quantum chaos; semiclassical methods

• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 6
• Pages: 1053-1059

Dates

published

2013-12

Contributors

author

H. Kohler

• Instituto de Ciencia de Materiales de Madrid, CSIC, Sor Juana de la Cruz 3, Cantoblanco, 28049 Madrid, Spain

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Identifiers

DOI

10.12693/APhysPolA.124.1053