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arXiv 0901.1758hep-th
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双子穿壁群的几何推导

A Geometric Derivation of the Dyon Wall-Crossing Group

Miranda C. N. Cheng, Lotte Hollands

摘要:

最近,利用超重力分析,双曲反射群被发现的结构下的壁交叉,或不连续的模量依赖的超对称指数,由于存在的边缘稳定的壁,BPS双子在N=4,d=4紧化。在本文中,我们工作的制度,四维引力的重叠,我们展示了如何存在这样一个群结构可以很容易地理解为一个系统的(p,q)五膜网络的超对称性的后果,或等价的全纯性的黎曼表面包裹适当的M5膜在欧几里德M-理论框架。

英文摘要:

Recently, using supergravity analysis, a hyperbolic reflection group was found to underlie the structure of wall-crossing, or the discontinuous moduli dependence of the supersymmetric index due to the presence of walls of marginal stability, of the BPS dyons in the N=4, d=4 compactification. In this paper we work in the regime where four-dimensional gravity decouples and we show how the presence of such a group structure can be easily understood as a consequence of the supersymmetry of a system of (p,q) five-brane network, or equivalently the holomorphicity of the Riemann surface wrapped by the appropriate M5 branes in the Euclidean M-theory frame.

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