Decoherence in closed and open systems

Details Decoherence in closed and open systems Decoherence in closed and open systems

2006-01-19

arxiv.org/abs/quant-ph/0601132v1

Physics

Quantum Physics

17 pages, no figures

Scientific paper

A generalized formal framework for decoherence, that can be used both in open and closed quantum systems, is sketched. In this context, the relationship between the decoherence of a closed system and the decoherence of its subsystems is studied, and the corresponding decoherence times are defined: for macroscopic systems, the decoherence time of the closed system is much greater than the decoherence time of its subsystems. Finally, it is shown that the application of the new formal framework to a well-known model leads to physically adequate results.

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