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arXiv 0908.4151hep-thgr-qc
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弦论中高斯-博内曲率修正的黑洞解

Black Hole Solutions in String Theory with Gauss-Bonnet Curvature Correction

Kei-ichi Maeda, Nobuyoshi Ohta, Yukinori Sasagawa

摘要:

在超弦有效场论中,利用高斯-邦纳曲率修正项,给出了黑洞解并分析了其性质.我们发现定性的差异,在我们的结果中得到的截断模型中的爱因斯坦框架。我们的模型与截断模型的主要区别在于,在五维和更高维中,质量-面积曲线、质量-熵曲线和质量-温度曲线存在一个转折点,在那里我们预期稳定性会发生变化。我们还发现在我们的模型中存在一个质量间隙,那里没有黑洞解。在五维空间中,存在一个最大的黑洞温度,在最小质量处温度为零,这在截断模型中是没有的。

英文摘要:

We present the black hole solutions and analyse their properties in the superstring effective field theory with the Gauss-Bonnet curvature correction terms. We find qualitative differences in our results from those obtained in the truncated model in the Einstein frame. The main difference in our model from the truncated one is that the existence of a turning point in the mass-area curve, the mass-entropy curve, and the mass-temperature curve in five and higher dimensions, where we expect a change of stability. We also find a mass gap in our model, where there is no black hole solution. In five dimensions, there exists a maximum black hole temperature and the temperature vanishes at the minimum mass, which is not found in the truncated model.

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