Hannover 2013 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster I

Q 35.13: Poster

Dienstag, 19. März 2013, 16:00–18:30, Empore Lichthof

Influence of initial correlations on the dynamics of open quantum systems — •Simon Milz — Institut für theoretische Physik TU Dresden, Deutschland

We investigate the effects of initial system-bath correlations on the dynamics of open quantum systems. While the dynamics of a system initially uncorrelated with its environment is well-known to be completely positive, the reduced time evolution arising from a general system-bath initial state does not necessarily display this feature [1,2].

By investigating the open dynamics of low-dimensional systems, we aim to shed light on the crucial differences between the dynamics of correlated and uncorrelated initial states. Moreover a detailed examination of the general reduced dynamics and the subset of states it can be applied to is carried out.

[1] P. Pechukas, Phys. Rev. Lett. 73 (8) (1994) 1060.

[2] T.F. Jordan, A. Shaji, E.C.G. Sudarshan, Phys. Rev A. 70 (5) (2004) 052110.