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arXiv 1202.0084hep-th
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从线算符融合得到的AdS5xS5弦论的Hirota方程

The Hirota equation for string theory in AdS5xS5 from the fusion of line operators

Raphael Benichou

摘要:

我们提出了一个微扰推导的T-系统,被认为是编码的平面N=4 SYM的确切频谱。T-系统被理解为一些特殊的线算符,量子转移矩阵之间的算符恒等式。通过计算转移矩阵融合过程中的量子修正,我们证明了T-系统在半经典展开中保持一阶。这种推导不依赖于任何假设。我们还讨论了扩展的证明,以其他理论,包括模型描述弦论的各种AdS空间。

英文摘要:

We present a perturbative derivation of the T-system that is believed to encode the exact spectrum of planar N=4 SYM. The T-system is understood as an operator identity between some special line operators, the quantum transfer matrices. By computing the quantum corrections in the process of fusion of transfer matrices, we show that the T-system holds up to first order in a semi-classical expansion. This derivation does not rely on any assumption. We also discuss the extension of the proof to other theories, including models describing string theory on various AdS spaces.

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