Phys. Rev. A 69, 022115 (2004) [8 pages]Exact quantum jump approach to open systems in bosonic and spin bathsReceived 8 August 2003; revised 1 December 2003; published 24 February 2004 A general method is developed which enables the exact treatment of the non-Markovian quantum dynamics of open systems through a Monte Carlo simulation technique. The method is based on a stochastic formulation of the von Neumann equation of the composite system and employs a pair of product states following a Markovian random jump process. The performance of the method is illustrated by means of stochastic simulations of the dynamics of open systems interacting with a Bosonic reservoir at zero temperature and with a spin bath in the strong coupling regime. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.022115
DOI:
10.1103/PhysRevA.69.022115
PACS:
03.65.Yz, 02.70.Ss, 05.10.Gg
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