Relaxation of experimental parameters in a quantum-gravity-induced entanglement of masses protocol using electromagnetic screening
Relaxation of experimental parameters in a quantum-gravity-induced entanglement of masses protocol using electromagnetic screening
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使用电磁屏蔽在量子引力引起的质量纠缠协议中放宽实验参数
DOI：
10.1103/physrevresearch.5.043170
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发表时间：
2023
影响因子：
4.2
通讯作者：
Schut M
中科院分区：
文献类型：
--
作者：
Schut M
要在实验室中测试引力的量子性质，需要见证两个测试质量（纳米晶体）之间的纠缠，这仅仅是由于空间叠加中保持一定距离的引力相互作用。该协议被称为量子引力诱导的质量纠缠（QGEM）。QGEM实验的主要背景之一是电磁诱导的纠缠和退相干。电磁相互作用可以通过真空诱导的偶极-偶极相互作用（例如Casimir-Polder相互作用）纠缠两个中性物质。为了减轻两个纳米晶体之间的电磁感应的相互作用，我们封闭的两个干涉仪在法拉第笼和分开它们的导电板。然而，任何缺陷的表面上的一个永久的偶极矩，如一个表面，也将创建一个电磁背景与导电板在实验箱中的相互作用。这些相互作用将进一步产生EM诱导的退相，我们希望减轻。在本文中，我们将考虑一个并行配置的QGEM实验，在那里我们将估计EM引起的失相率和运行的系统误差，这将导致失相，也提供了一个模型独立的方式创建的空间叠加的叠加的大小上的限制。
To test the quantum nature of gravity in a laboratory requires witnessing the entanglement between the two test masses (nanocrystals) solely due to the gravitational interaction kept at a distance in a spatial superposition. The protocol is known as the quantum-gravity-induced entanglement of masses (QGEM). One of the main backgrounds in the QGEM experiment is electromagnetic (EM) -induced entanglement and decoherence. The EM interactions can entangle the two neutral masses via dipole-dipole vacuum-induced interactions, such as the Casimir-Polder interaction. To mitigate the EM-induced interactions between the two nanocrystals, we enclose the two interferometers in a Faraday cage and separate them by a conducting plate. However, any imperfection on the surface of a nanocrystal, such as a permanent dipole moment, will also create an EM background interacting with the conducting plate in the experimental box. These interactions will further generate EM-induced dephasing, which we wish to mitigate. In this paper, we will consider a parallel configuration of the QGEM experiment, where we will estimate the EM-induced dephasing rate and run-by-run systematic errors which will induce dephasing, and also provide constraints on the size of the superposition in a model-independent way of creating the spatial superposition.
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影响因子：
5
作者：
Belenchia, Alessio;Wald, Robert M.;Aspelmeyer, Markus
通讯作者：
Aspelmeyer, Markus
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
L. Buoninfante;G. Lambiase;A. Mazumdar
通讯作者：
A. Mazumdar
影响因子：
16.6
作者：
Subramaniam, Chandramouli;Yamada, Takeo;Kobashi, Kazufumi;Sekiguchi, Atsuko;Futaba, Don N.;Yumura, Motoo;Hata, Kenji
通讯作者：
Hata, Kenji
DOI：
10.1016/s0375-9601(99)00785-9
发表时间：
1999-12
期刊：
--
影响因子：
--
作者：
V.B.Braginsky;M.L.Gorodetsky;S.P.Vyatchanin
通讯作者：
V.B.Braginsky;M.L.Gorodetsky;S.P.Vyatchanin
用于见证退相干下量子引力引起的质量纠缠的 Qudits
影响因子：
2.9
作者：
J. Tilly;Ryan J. Marshman;A. Mazumdar;S. Bose
通讯作者：
S. Bose