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arXiv 1406.7147hep-th
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多个单中心吸引子

Multiple Single-Centered Attractors

Pramod Dominic, Taniya Mandal, Prasanta K. Tripathy

摘要:

本文研究了四维N=2超引力中球对称单中心吸引子。通过对模空间中的有效黑洞势取极值得到了吸引子点。利用有效黑洞势临界点的4D-5D对应,我们证明了四维空间中多重吸引子的存在性,并在一个简单的两参数模型中明确地构造了一对多重解.我们进一步得到了在带D 0-D4-D 6电荷的K3 × T2上紧化的IIA型弦论中两个不同的非超对称吸引子的显式例子。我们计算了这些吸引子的熵,并详细分析了它们的稳定性。

英文摘要:

In this paper we study spherically symmetric single-centered attractors in N=2 supergravity in four dimensions. The attractor points are obtained by extremising the effective black hole potential in the moduli space. Using the 4D-5D correspondence of critical points of the effective black hole potential we argue the existence of multiple attractors in four dimensions and explicitly construct a pair of multiple solutions in a simple two parameter model. We further obtain explicit examples of two distinct non-supersymmetric attractors in type IIA string theory compactified on K3 X T2 carrying D0-D4-D6 charges. We compute the entropy of these attractors and analyse their stability in detail.

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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