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arXiv 1107.2370hep-thhep-phmath-phmath.MP
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CFT/弦对偶的积分方程

Integral Equation for CFT/String Duality

Alexander Migdal

摘要:

我们重新解释和扩展一些旧的工作CFT/弦对偶。本文考虑一类在大N极限下的渐近共形场论,共形对称性被无穷多个算子的VEV破缺。假设这个理论的限制(即是对偶无限数量的自由复合粒子),我们推导出明确的方程的质谱算子的理论Q,这个运营商的CFT的OPE扩展。在一些关于OPE系数增长的一般假设下(小于双阶乘增长),所得到的质谱展开是收敛的。该方法不仅适用于ADS族中的有约束连续傅里叶变换,也适用于任何有约束的渐近连续傅里叶变换。这包括普通的QCD。在后一种情况下,我们的微扰展开的第一项在低角动量下与实验Regge轨迹有很好的对应关系。

英文摘要:

We reinterpret and extend some old work on CFT/string duality. We consider some asymptotically conformal field theory in large N limit, with conformal symmetry broken by VEV's of infinite number of operators. Assuming that this theory confines (i.e. is dual to infinite number of free composite particles) we derive explicit equation for the mass spectrum operator Q of the theory, relating this operator to terms OPE expansion of CFT. Under some general assumptions about growth of OPE coefficients (less than double factorial growth) the resulting expansion for the mass spectrum is convergent. This method applies to confining CFT of ADS family as well as any asymptotically CFT with confinement. This includes the ordinary QCD. In the latter case the first terms of our perturbation expansion have good correspondence with experimental Regge trajectories at low angular momentum.

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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