Simulation of open quantum systemsF. Mintert1, 2 and E. J. Heller2
1 Physikalisches Institut, Albert-Ludwigs Universität Freiburg - Hermann-Herder-Str. 3, Freiburg, Germany, EU
2 Department of Physics, Harvard University - 17 Oxford Street, Cambridge, MA, USA
received 5 December 2008; accepted in final form 15 May 2009; published June 2009
published online 24 June 2009
We present an approach for the semiclassical treatment of open quantum systems. An expansion into localized states allows restriction of a simulation to a fraction of the environment that is located within a predefined vicinity of the system. Adding and dropping environmental particles during the simulation yields an effective reduction of the size of the system that is being treated.
02.70.Ss - Quantum Monte Carlo methods.
03.65.Sq - Semiclassical theories and applications.
03.65.Yz - Decoherence; open systems; quantum statistical methods.
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