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arXiv 2401.04520quant-phgr-qc
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相消干涉在引力诱导纠缠中的关键作用

Essential role of destructive interference in the gravitationally induced entanglement

Aiham M. Rostom

AI总结:

本文将引力诱导纠缠分析为纯粹的干涉效应,指出其仅由相消量子干涉的符号改变诱导,发现非最大纠缠态能恢复最大可见度干涉图样,从而有效降低实验测试要求并提升信噪比。

摘要:

引力诱导纠缠是一种利用两个介观粒子间的牛顿引力相互作用产生的量子纠缠。作为研究引力量子方面的新平台,它引起了广泛关注。本文将引力诱导纠缠分析为一种纯粹的干涉效应,并表明该纠缠仅由与相消量子干涉相关的符号改变所诱导。研究还表明,当纠缠非最大时,为其中一个粒子准备相消干涉,可以为另一个粒子恢复最大可见度的干涉图样。因此,非最大纠缠态对实验测试极为有效,因为它有助于降低要求(粒子质量及其相互作用持续时间、分离距离和源),同时保留关于纠缠的信息。最终,本文展示了信噪比的提升,并定义了一个决定实验测试最低要求的参数。

英文摘要:

The gravitationally induced entanglement is a type of quantum entanglement that can be generated between two mesoscopic particles using their Newtonian gravitational interaction. It has attracted a great deal of attention as a new platform for studying quantum aspects of gravity. The present paper analyzes the gravitationally induced entanglement as a pure interference effect and shows that the entanglement is induced solely by a sign change associated with the destructive quantum interference. It is also shown that when the entanglement is non-maximal, the preparation for destructive interference for one of the particles can recover a maximum visibility interference pattern for the other particle. Therefore, the non-maximally entangled state can be extremely effective for experimental testing since it can help in reducing requirements (on masses of the particles and their interaction duration, separation distances and sources) and preserve the information about entanglement at the same time. As a result, the improvement in the signal-to-noise ratio is demonstrated and a parameter that determines minimal requirements for experimental testing is defined.

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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