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arXiv 1208.0103gr-qcastro-ph.COhep-th
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具有非最小导数耦合的黑洞

Black holes with non-minimal derivative coupling

Massimiliano Rinaldi

摘要:

研究了无质量标量场的导数与爱因斯坦张量耦合时的引力场方程。这种配置是由伽利略引力的动机,因为它保留了标量扇区的移位不变性。我们解析地得到了静态和球对称几何的解,其中也包括具有单个规则视界的黑洞。我们研究这些解决方案的物理性质,我们揭示了非微扰性质的伽利略耦合常数。我们还发现了一个相变,类似于霍金和佩奇所描述的相变,它发生在由黑洞质量和耦合强度决定的临界温度。

英文摘要:

We study the gravitational field equations in the presence of a coupling between the derivative of a massless scalar field and the Einstein tensor. This configuration is motivated by Galileon gravity as it preserves shift invariance in the scalar sector. We analytically obtain solutions with static and spherically symmetric geometry, which also include black holes with a single regular horizon. We examine the thermodynamical properties of these solutions, and we reveal the non-perturbative nature of the Galileon coupling constant. We also find a phase transition, similar to the one described by Hawking and Page, which occurs at a critical temperature determined by both the black hole mass and by the strength of the coupling.

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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