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arXiv 1506.04414quant-phcond-mat.mes-hallmath-phmath.MP
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介观系统的引力退相干

Gravitational Decoherence for Mesoscopic Systems

Stephen L. Adler, Angelo Bassi

摘要:

我们将Pikovski等人最近的引力退相干分析推广到具有能量本征态相干叠加的内态的单个介观系统。我们表示的Pikovski等。直接在能量方差的影响,并表明,从下面的干涉可见度是有界的。因此,与碰撞退相干不同,可见度在很长时间内不会接近零,尽管对于一个大系统,它可以变得非常小。

英文摘要:

We extend the recent gravitational decoherence analysis of Pikovski et al. to an individual mesoscopic system with internal state characterized by a coherent superposition of energy eigenstates. We express the Pikovski et al. effect directly in terms of the energy variance, and show that the interferometric visibility is bounded from below. Hence unlike collisional decoherence, the visibility does not approach zero at large times, although for a large system it can become very small.

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