量子场论中曲率对局部观测值的影响

IF 3.6 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Classical and Quantum Gravity Pub Date : 2025-04-08 DOI:10.1088/1361-6382/adc534

Ahmed Shalabi, Matheus H Zambianco and T Rick Perche

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引用次数: 0

摘要

我们计算了一个无质量实标量量子场在局域时空中由于曲率而产生的平方场振幅期望值的阶修正。我们使用黎曼标准坐标来定义弯曲时空中与平坦空间相似的局域场算子，并使用Hadamard条件来找到场相关性的阶曲率修正。然后，我们将我们的结果应用于粒子探测器模型，量化局域场探测器中时空曲率的影响。

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The effect of curvature on local observables in quantum field theory

We compute the leading order corrections to the expected value of the squared field amplitude of a massless real scalar quantum field due to curvature in a localized region of spacetime. We use Riemann normal coordinates to define localized field operators in a curved spacetime that are analogous to their flat space counterparts, and the Hadamard condition to find the leading order curvature corrections to the field correlations. We then apply our results to particle detector models, quantifying the effect of spacetime curvature in localized field probes.

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来源期刊

Classical and Quantum Gravity 物理-天文与天体物理

CiteScore

7.00

自引率

8.60%

发文量

301

审稿时长

2-4 weeks

期刊介绍： Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.