Fast transients in mesoscopic systems

0364088 - FZÚ 2012 RIV US eng C - Conference Paper (international conference)
Kalvová, Anděla - Špička, Václav - Velický, B.
Fast transients in mesoscopic systems.
Non-Equilibrium Statistical Physics Today. New York: American Institute of Physics (AIP), 2011 - (Garrido, P.; Marro, J.; de los Santos, F.), s. 223-225. AIP Conference Proceedings, 1332. ISBN 978-0-7354-0887-6.
[Granada Seminar on Computational and Statistical Physics /11./. La Herradura, Granada (ES), 13.09.2010-17.09.2010]
R&D Projects: GA ČR GA202/08/0361
Institutional research plan: CEZ:AV0Z10100520; CEZ:AV0Z10100521
Keywords : molecular bridge * initial conditions * decay of correlations * non-equilibrium Green's functions
Subject RIV: BM - Solid Matter Physics ; Magnetism
http://dx.doi.org/10.1063/1.3569507

We study fast transient dynamics of an open quantum system at the initial stage of its equilibration starting far from equilibrium from correlated initial condition reflecting entanglement with the environment. These correlations rapidly decay and the process enters the non-equilibrium quasi-particle mode controlled by generalized master equation. As a model system, the nanoscopic molecular bridge between two leads is considered. The coupling to the leads is assumed to be intermittent. Properties of the resulting transients are demonstrated and analyzed.
Permanent Link: http://hdl.handle.net/11104/0199660