Purity of states in the theory of open quantum systems

Details Purity of states in the theory of open quantum systems Purity of states in the theory of open quantum systems

2006-04-28

arxiv.org/abs/quant-ph/0604212v1

Romanian Journal of Physics, Vol. 43, No. 7-8, p. 481 (1998)

Physics

Quantum Physics

17 pages

Scientific paper

The condition of purity of states for a damped harmonic oscillator is considered in the framework of Lindblad theory for open quantum systems. For a special choice of the environment coefficients, the correlated coherent states are shown to be the only states which remain pure all the time during the evolution of the considered system. These states are also the most stable under evolution in the presence of the environment.

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