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arXiv 2007.04488hep-th
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高维量子引力和M-(矩阵)理论的两种方法

Two approaches to quantum gravity and M-(atrix) theory at large number of dimensions

Badis Ydri

摘要:

在大的维数值$d$下,考虑了具有质量形变的M-(矩阵)理论玻色子部分的高斯近似。从规范/引力对偶的角度来看,这个作用量非常精确地再现了从禁闭到弦Hagedorn的相变(黑弦)相位到解禁闭(黑洞)相,而从矩阵/几何方法的角度来看,该动作仅捕获几何杨米尔斯到模糊球相的残余,其中模糊球解仅表现为称为“婴儿模糊球”的结构。杨-米尔斯相保留了它的大部分特征,但有两个例外:i)在一个固体球内的均匀分布在规范耦合常数非常小的值处与维格纳半圆定律相交,ii)在小的温度值处的均匀分布是不存在的。

英文摘要:

A Gaussian approximation to the bosonic part of M-(atrix) theory with mass deformation is considered at large values of the dimension $d$. From the perspective of the gauge/gravity duality this action reproduces with great accuracy the stringy Hagedorn phase transition from a confinement (black string) phase to a deconfinement (black hole) phase whereas from the perspective of the matrix/geometry approach this action only captures a remnant of the geometric Yang-Mills-to-fuzzy-sphere phase where the fuzzy sphere solution is only manifested as a three-cut configuration termed the "baby fuzzy sphere" configuration. The Yang-Mills phase retains most of its characteristics with two exceptions: i) the uniform distribution inside a solid ball suffers a crossover at very small values of the gauge coupling constant to a Wigner's semi-circle law, and ii) the uniform distribution at small values of the temperatures is non-existent.

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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