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arXiv 2006.16449hep-th
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用开弦场论非微扰定义闭弦论

Nonperturbative definition of closed string theory via open string field theory

Yuji Okawa

摘要:

在AdS/CFT对应的典型例子中,假设在D膜存在的情况下,有洞的世界片理论在低能极限下等价于在不同背景下(如$AdS_5 \times S^5$)没有洞的世界片理论。在玻色弦的情况下,我们在这种等价性的假设下主张,$N$重合D-膜上的开弦场论可以用来提供闭弦论的非微扰定义,其基础是规范不变算子的关联函数的$1/N$展开再现了具有孔的世界片理论,在孔中黎曼曲面的模空间被精确地覆盖。

英文摘要:

In typical examples of the AdS/CFT correspondence, the world-sheet theory with holes in the presence of D-branes is assumed to be equivalent in a low-energy limit to a world-sheet theory without holes for a different background such as $AdS_5 \times S^5$. In the case of the bosonic string, we claim under the assumption of this equivalence that open string field theory on $N$ coincident D-branes can be used to provide a nonperturbative definition of closed string theory based on the fact that the $1/N$ expansion of correlation functions of gauge-invariant operators reproduces the world-sheet theory with holes where the moduli space of Riemann surfaces is precisely covered.

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