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arXiv 1602.01979quant-ph
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引力时间膨胀引起的退相干:竞争退相干效应的分析

Decoherence due to gravitational time dilation: analysis of competing decoherence effects

Matteo Carlesso, Angelo Bassi

摘要:

最近,一个静态的引力场,如地球的引力场,被提出作为一个新的退相干源[1]。我们研究了在典型的干涉实验中它成为主要退相干效应的条件。考虑以下竞争源:光的自发发射、吸收、与热光子的散射以及与残余气体的碰撞。我们量化了所有这些影响。正如我们将看到的,目前的实验偏离了几个数量级。为了达到必要的要求,需要新的想法:拥有尽可能大的系统,以增加引力退相干,冷却它并隔离得足够好,以减少热和碰撞退相干,并解决非常小的距离。

英文摘要:

Recently, a static gravitational field, such as that of the Earth, was proposed as a new source of decoherence [1]. We study the conditions under which it becomes the dominant decoherence effect in typical interferometric experiments. The following competing sources are considered: spontaneous emission of light, absorption, scattering with the thermal photons and collisions with the residual gas. We quantify all these effects. As we will see, current experiments are off by several orders of magnitude. New ideas are needed in order to achieve the necessary requirements: having as large as system as possible, to increase gravitational decoherence, cool it and isolated well enough to reduce thermal and collisional decoherence, and resolve very small distances.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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