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arXiv 1502.01028hep-thgr-qc
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高阶导数引力中的黑洞

Black Holes in Higher-Derivative Gravity

H. Lu, A. Perkins, C. N. Pope, K. S. Stelle

摘要:

带有高阶导数项的爱因斯坦引力的扩展出现在弦论和其他有效理论中,它们本身也很有趣。本文以爱因斯坦引力为例,研究了附加二次曲率项的静态黑洞解。一个Lichnerowicz型定理简化了分析,建立他们必须有消失的里奇标量曲率。通过数值方法,我们证明了进一步的黑洞解的存在和以上的史瓦西解。讨论了它们的一些热力学性质,证明它们服从热力学热力学第一定律。

英文摘要:

Extensions of Einstein gravity with higher-order derivative terms arise in string theory and other effective theories, as well as being of interest in their own right. In this paper we study static black-hole solutions in the example of Einstein gravity with additional quadratic curvature terms. A Lichnerowicz-type theorem simplifies the analysis by establishing that they must have vanishing Ricci scalar curvature. By numerical methods we then demonstrate the existence of further black-hole solutions over and above the Schwarzschild solution. We discuss some of their thermodynamic properties, and show that they obey the first law of thermodynamics.

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