Lindbladian Evolution with Selfadjoint Lindblad Operators as Averaged Random Unitary Evolution

Details Lindbladian Evolution with Selfadjoint Lindblad Operators as Averaged Random Unitary Evolution Lindbladian Evolution with Selfadjoint Lindblad Operators as Averaged Random Unitary Evolution

2002-08-28

arxiv.org/abs/quant-ph/0208175v1

Physics

Quantum Physics

16 pages, 4 ps figures

Scientific paper

It is shown how any Lindbladian evolution with selfadjoint Lindblad operators, either Markovian or nonMarkovian, can be understood as an averaged random unitary evolution. Both mathematical and physical consequences are analyzed. First a simple and fast method to solve this kind of master equations is suggested and particularly illustrated with the phase-damped master equation for the multiphoton resonant Jaynes-Cummings model in the rotating-wave approximation. A generalization to some intrinsic decoherence models present in the literature is included. Under the same philosophy a proposal to generalize the Jaynes-Cummings model is suggested whose predictions are in accordance with experimental results in cavity QED and in ion traps. A comparison with stochastic dynamical collapse models is also included.

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