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arXiv 2310.07544math-phgr-qcmath.DGmath.MP
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因果变分原理的一个正拟局部质量

A Positive Quasilocal Mass for Causal Variational Principles

Felix Finster, Niky Kamran

AI总结:

本文针对因果变分原理极小化子证明新不等式,用于正质量定理新证明,并引入正拟局部质量与标量曲率定义,在超静态及史瓦西时空示例中阐明与ADM及Brown-York质量的联系。

摘要:

针对因果变分原理的极小化子,证明了一个关于非线性曲面层积分的新不等式。该不等式被应用于获得带体积约束的正质量定理的一个新证明。接着,通过引入并利用渐近对齐的概念,陈述并证明了不带体积约束的正质量定理。此外,在因果变分原理的框架下,引入了正拟局部质量和标量曲率的综合定义。我们的概念和结果通过分别在超静态时空和史瓦西时空中构造的因果费米子系统的显式例子加以说明。在这些例子中,我们详细阐述了与ADM质量的对应关系以及与Brown-York质量的相似性。

英文摘要:

A new inequality for a nonlinear surface layer integral is proved for minimizers of causal variational principles. This inequality is applied to obtain a new proof of the positive mass theorem with volume constraint. Next, a positive mass theorem without volume constraint is stated and proved by introducing and using the concept of asymptotic alignment. Moreover, a positive quasilocal mass and a synthetic definition of scalar curvature are introduced in the setting of causal variational principles. Our notions and results are illustrated by the explicit examples of causal fermion systems constructed in ultrastatic spacetimes and the Schwarzschild spacetime. In these examples, the correspondence to the ADM mass and similarities to the Brown-York mass are worked out.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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