大质量粒子动力学上引力量子真空的特征

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-05-27 DOI:10.1103/physrevd.111.106022

Aaron R. Malcolm, Zhi-Wei Wang, B. Sharmila, Animesh Datta

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引用次数: 0

摘要

我们研究了两个大质量粒子在真空状态下与量子化引力场的相互作用，使用了两个不同位置的可观测值：(i)与框架相关的坐标分离和（ii）与框架无关的测地线分离。对于自由粒子，(i)导致纯酉动力学，但（ii）导致耗散。对于通过线性弹簧耦合的两个粒子，(i)和（ii）在微分运动模态的频移谐波阶梯中导致不同的截止依赖。我们的发现强调了在量子力学和引力的界面上选择不同位置的可观测结果。2025年由美国物理学会出版

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Signatures of a gravitational quantum vacuum on the dynamics of massive particles

We study the interaction of two massive particles with a quantized gravitational field in its vacuum state using two different position observables: (i) a frame-dependent coordinate separation and (ii) a frame-independent geodesic separation. For free particles, (i) leads to purely unitary dynamics but (ii) leads to dissipation. For two particles coupled through a linear spring, (i) and (ii) lead to different cutoff dependences in the frequency shift harmonic ladder of the differential motional mode. Our findings highlight the observable consequences of choosing different position observables at the interface of quantum mechanics and gravity.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.