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Decoherence and fluctuations in quantum interference experiments

A. Mariano·P. Facchi·S. Pascazio
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Abstract

We analyze the notion of quantum coherence in an interference experiment. We let the phase shifts fluctuate according to a given statistical distribution and introduce a decoherence parameter, defined in terms of a generalized visibility of the interference pattern. One might naively expect that a particle ensemble suffers a greater loss of quantum coherence by interacting with an increasingly randomized distribution of shifts. As we shall see, this is not always true.

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A. Mariano, P. Facchi, S. Pascazio. 2001-06-06. Decoherence and fluctuations in quantum interference experiments. https://doi.org/10.1002/1521-3978(200110)49%3A10%2F11%3C1033%3A%3Aaid-prop1033%3E3.0.co%3B2-u

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