Dresden 2006 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 22: Quantum Dynamics II

DY 22.8: Vortrag

Dienstag, 28. März 2006, 12:45–13:00, H\"UL 186

Continuous time quantum walks in phase space — •Oliver Mülken — Institut für Physik, Universität Freiburg

We formulate continuous time quantum walks (CTQW) in a discrete quantum mechanical phase space. We define and calculate the Wigner function (WF) and its marginal distributions for CTQWs on circles of arbitrary length $N$. The WF of the CTQW shows characteristic features in phase space. Revivals of the probability distributions found for continuous and for discrete quantum carpets do manifest themselves as characteristic patterns in phase space.

∖Zitat{1}{arXiv: quant-ph/0509141}