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arXiv 1106.4873hep-th
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BPS状态、晶体和基质

BPS states, crystals and matrices

Piotr Sułkowski

摘要:

我们回顾了局部复曲面卡-丘流形上的自由费米子、熔化晶体和跨壁现象的矩阵模型表示。我们考虑未精炼和精炼的BPS计数的封闭BPS状态,涉及D2和D 0-膜绑定到一个D 6-膜,以及开放的BPS状态,涉及开放的D2-膜结束一个额外的D4-膜。这些结构的适当限制提供了,除其他外,矩阵模型表示的细化和未细化的拓扑弦振幅。

英文摘要:

We review free fermion, melting crystal and matrix model representations of wall-crossing phenomena on local, toric Calabi-Yau manifolds. We consider both unrefined and refined BPS counting of closed BPS states involving D2 and D0-branes bound to a D6-brane, as well as open BPS states involving open D2-branes ending on an additional D4-brane. Appropriate limit of these constructions provides, among the others, matrix model representation of refined and unrefined topological string amplitudes.

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