English

D0-brane realizations of the resolution of a reduced singular curve

Algebraic Geometry 2011-11-22 v1 High Energy Physics - Theory Symplectic Geometry

Abstract

Based on examples from superstring/D-brane theory since the work of Douglas and Moore on resolution of singularities of a superstring target-space YY via a D-brane probe, the richness and the complexity of the stack of punctual D0-branes on a variety, and as a guiding question, we lay down a conjecture that any resolution YYY^{\prime}\rightarrow Y of a variety YY over C{\Bbb C} can be factored through an embedding of YY^{\prime} into the stack Mr0  pAzf(Y){\frak M}^{0^{A z^f}_{\;p}}_r (Y) of punctual D0-branes of rank rr on YY for rr0r\ge r_0 in N{\Bbb N}, where r0r_0 depends on the germ of singularities of YY. We prove that this conjecture holds for the resolution ρ:CC\rho: C^{\prime}\rightarrow C of a reduced singular curve CC over C{\Bbb C}. In string-theoretical language, this says that the resolution CC^{\prime} of a singular curve CC always arises from an appropriate D0-brane aggregation on CC and that the rank of the Chan-Paton module of the D0-branes involved can be chosen to be arbitrarily large.

Keywords

Cite

@article{arxiv.1111.4707,
  title  = {D0-brane realizations of the resolution of a reduced singular curve},
  author = {Chien-Hao Liu and Shing-Tung Yau},
  journal= {arXiv preprint arXiv:1111.4707},
  year   = {2011}
}

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9+2 pages