Asymmetry Induced Localization
Heiner Kohler · Acta Physica Polonica A · 2013
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 nite even for innitely strong coupling strength.The two-level system is in a delocalized phase.For nite coupling strength a localization transition occurs for a critical asymmetry angle, which separates the localized from the delocalized phase.Using the method of ow equations we are able to monitor real time dynamics.