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arXiv 1702.08016hep-thcond-mat.str-el
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SYK的体对偶:立方耦合

The Bulk Dual of SYK: Cubic Couplings

David J. Gross, Vladimir Rosenhaus

摘要:

SYK模型是$N \gg 1$ Majorana费米子$χ_i$与$q$体随机相互作用的量子力学模型,是全息术的一种新的实现.已知AdS $_2$对偶包含一个大质量粒子的塔,但目前还没有关于体理论的建议。由于SYK在$1/N$展开式中是可解的,因此可以系统地导出体。我们启动了这样一个程序,通过分析费米子的二,四和六点函数,从中我们提取的塔的单重态,大$N$主导,运营商,他们的尺寸,和他们的三点关联函数。这些决定了体场的质量和它们的立方耦合。我们介绍这些耦合,分析它们的结构并讨论大型$q$出现的简化。

英文摘要:

The SYK model, a quantum mechanical model of $N \gg 1$ Majorana fermions $χ_i$, with a $q$-body, random interaction, is a novel realization of holography. It is known that the AdS$_2$ dual contains a tower of massive particles, yet there is at present no proposal for the bulk theory. As SYK is solvable in the $1/N$ expansion, one can systematically derive the bulk. We initiate such a program, by analyzing the fermion two, four and six-point functions, from which we extract the tower of singlet, large $N$ dominant, operators, their dimensions, and their three-point correlation functions. These determine the masses of the bulk fields and their cubic couplings. We present these couplings, analyze their structure and discuss the simplifications that arise for large $q$.

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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