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arXiv 0810.4909hep-th
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局部Calabi-Yau流形中的壁穿越

Wall crossing in local Calabi Yau manifolds

Daniel L. Jafferis, Gregory W. Moore

摘要:

我们研究了一个D 6-膜的BPS态,它包裹着锥状结构,并与D2和D 0膜的集合绑定。我们发现,除了复杂的Kahler参数的刚性球,它是必要的,引入一个额外的实参数来描述BPS配分函数和边缘稳定壁。BPS态计数的超引力方法给出了Szendroi关于Donaldson-Thomas理论在非对易锥上的结果的一个简单推导。这个例子也说明了超重力方法在BPS状态计数和跨壁方面的一些有趣的限制。

英文摘要:

We study the BPS states of a D6-brane wrapping the conifold and bound to collections of D2 and D0 branes. We find that in addition to the complexified Kahler parameter of the rigid sphere it is necessary to introduce an extra real parameter to describe BPS partition functions and marginal stability walls. The supergravity approach to BPS state-counting gives a simple derivation of results of Szendroi concerning Donaldson-Thomas theory on the noncommutative conifold. This example also illustrates some interesting limitations on the supergravity approach to BPS state-counting and wall-crossing.

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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