arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1703.04744hep-th
收藏

操作员混入盖上变形的D1D5 CFT和OPE

Operator mixing in deformed D1D5 CFT and the OPE on the cover

Benjamin A. Burrington, Ian T. Jardine, Amanda W. Peet

摘要:

我们考虑了D1D5 CFT在轨道点附近的情况,并利用覆盖曲面上的OPE,发展了计算一阶无扭算子混合的方法。我们认为,OPE的封面上编码的结构常数的orbifold CFT和混合算子的明确形式。我们在一些示例操作符中明确显示了这一点。我们首先考虑一个家庭的运营商双超重力模式,并表明OPE意味着,有没有移动的异常尺寸的一阶,如预期的。我们专门的运营商的对偶的EQUION,并表明,领先的OPE阶奇点再现正确的结构常数。最后,我们考虑了一个保形维数为(2,2)的无保护算子,并证明了首阶奇点和其中一个次首奇点都再现了正确的结构常数。我们检查,在subleading秩序使用OPE方法产生的运营商是正确的,通过计算的三个点的功能,使用Mathematica软件包,我们开发的。这种OPE技术的进一步发展,应导致更有效的计算D1D5 CFT扰动远离轨道点。

英文摘要:

We consider the D1D5 CFT near the orbifold point and develop methods for computing the mixing of untwisted operators to first order by using the OPE on the covering surface. We argue that the OPE on the cover encodes both the structure constants for the orbifold CFT and the explicit form of the mixing operators. We show this explicitly for some example operators. We start by considering a family of operators dual to supergravity modes, and show that the OPE implies that there is no shift in the anomalous dimension to first order, as expected. We specialize to the operator dual to the dilaton, and show that the leading order singularity in the OPE reproduces the correct structure constant. Finally, we consider an unprotected operator of conformal dimension (2,2), and show that the leading order singularity and one of the subleading singularies both reproduce the correct structure constant. We check that the operator produced at subleading order using the OPE method is correct by calculating a number of three point functions using a Mathematica package we developed. Further development of this OPE technique should lead to more efficient calculations for the D1D5 CFT perturbed away from the orbifold point.

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。

↑