Geometric phase in open systems

Details Geometric phase in open systems Geometric phase in open systems

2003-01-09

arxiv.org/abs/quant-ph/0301037v1

Phys. Rev. Lett. 90 (2003) 160402

Physics

Quantum Physics

4 pages, 2 figures, RevTeX

Scientific paper

10.1103/PhysRevLett.90.160402

We calculate the geometric phase associated to the evolution of a system subjected to decoherence through a quantum-jump approach. The method is general and can be applied to many different physical systems. As examples, two main source of decoherence are considered: dephasing and spontaneous decay. We show that the geometric phase is completely insensitive to the former, i.e. it is independent of the number of jumps determined by the dephasing operator.

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