Causality Constraints on Gravitational Effective Field Theories.
Causality Constraints on Gravitational Effective Field Theories.
复制标题
引力有效场论的因果约束。
DOI：
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发表时间：
2021
影响因子：
8.6
通讯作者：
Jun Zhang
中科院分区：
文献类型：
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作者：
Claudia de Rham;A. Tolley;Jun Zhang
我们考虑黑洞周围引力的有效场论，并表明8维算子的系数受到因果关系的严格约束。这些限制是一致的，但比以前推导的因果关系和积极的界限，并意味着8维运营商本身的影响不能观察到，同时保持因果关系一致。然后，我们建立在哪种制度下，人们可以期望的通用维8和低阶运营商是潜在的可观察的，同时保持因果关系，为未来的观察提供了理论先验。我们强调了“红外因果关系”的重要性，并表明，“渐近因果关系”或净（子）亮度的要求将无法正确诊断违反因果关系。
We consider the effective field theory of gravity around black holes, and show that the coefficients of the dimension-8 operators are tightly constrained by causality considerations. Those constraints are consistent with-but tighter than-previously derived causality and positivity bounds and imply that the effects of one of the dimension-8 operators by itself cannot be observable while remaining consistent with causality. We then establish in which regime one can expect the generic dimension-8 and lower order operators to be potentially observable while preserving causality, providing a theoretical prior for future observations. We highlight the importance of "infrared causality" and show that the requirement of "asymptotic causality" or net (sub)luminality would fail to properly diagnose violations of causality.
影响因子：
5.4
作者：
S. Endlich;V. Gorbenko;Junwu Huang;L. Senatore
通讯作者：
S. Endlich;V. Gorbenko;Junwu Huang;L. Senatore
从振幅到具有立方相互作用和潮汐效应的引力辐射
影响因子：
5
作者：
Accettulli Huber M
通讯作者：
Accettulli Huber M
弯曲时空的折射率 II：QED、彭罗斯极限和黑洞
影响因子：
5.4
作者：
Hollowood T
通讯作者：
Hollowood T