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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 2 Issue 1 (1998) pp 131-142
Energy-transfer and quantum trajectories in quasi-molecular networks
C.M. Granzow (a), A. Liebman, G. Mahler
Institut für Theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
Received: 21 July 1997 / Received in final form: 10 November 1997 / Accepted: 27 October 1997
Abstract: Continuous measurement models are conveniently based on master equations specified by the respective Hamiltonian and appropriate environment operators. As demonstrated by stochastic unraveling, the latter specify the dynamical process rather than static detection modes. We show that certain environment operators acting on a simple system may, in fact, require extended networks for implementation: Their Hamilton parameters re-appear in the effective environment operators of the reduced model. The resulting quantum trajectories typically involve competing paths, which may give rise to different fluctuation and noise properties even when the corresponding ensemble behavior is practically the same.
PACS. 42.50.Lc Quantum fluctuations, quantum noise, and quantum jumps - 06.20.Dk Measurement and error theory
(a) email: claus@theo.physik.uni-stuttgart.de
Online publication: April 21, 1998
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