What gravity mediated entanglement can really tell us about quantum gravity

被引：8
|
作者：
Martin-Martinez, Eduardo [1 ]
Perche, T. Rick [1 ,2 ,3 ]
机构：
[1] Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada
[2] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada
[3] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada
来源：
PHYSICAL REVIEW D | 2023年 / 108卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1103/PhysRevD.108.L101702
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We revisit the Bose-Marletto-Vedral (BMV) tabletop experimental proposal-which aims to witness quantum gravity using gravity-mediated entanglement-analyzing the role of locality in the experiment. We first carry out a fully quantum modeling of the interaction of matter and gravity and then show in what way gravity-mediated entanglement in the BMV experiment could be accounted for without appealing to quantum degrees of freedom of the gravitational field. We discuss what assumptions are needed in order to interpret the current BMV experiment proposals as a proof of quantum gravity, and also identify the modifications that a BMV-like experiment could have in order to serve as proof of quantum gravity without having to assume the existence of local mediators in the gravitational field.
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页数：7
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