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arXiv 2003.02269hep-thgr-qc
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对小黑环的高阶导数修正

Higher-derivative corrections to small black rings

Alejandro Ruipérez

摘要:

我们计算一阶$α'$ -修正的一般家庭的超对称杂化背景,它描述了一个基本的字符串和动量波的旋转叠加。我们专注于一个特定的解决方案,在这个家庭,使提高,降维到五个维度,一个黑色的环,两个电荷和一个偶极子,有一个奇异的地平线消失的地区在超引力近似,更好地称为小黑环。我们表明,在视界的奇异性仍然存在,即使在一阶$α'$ -修正已被考虑。这意味着,与文献中所讨论的相反,高阶导数修正不能解决5维小黑环的奇异视界,至少在$α'$中的一阶。

英文摘要:

We compute the first-order $α'$-corrections to a general family of supersymmetric heterotic backgrounds which describes a rotating superposition of a fundamental string and a momentum wave. We focus on a particular solution within this family that gives raise, upon dimensional reduction to five dimensions, to a black ring with two charges and one dipole that has a singular horizon with vanishing area in the supergravity approximation, better known as small black ring. We show that the singularity at the horizon persists even after the first-order $α'$-corrections have been taken into account. This implies, contrary to what has been argued in the literature, that higher-derivative corrections do not resolve the singular horizon of the 5-dimensional small black ring, at least at first-order in $α'$.

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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