近日,印度理工学院物理系的Shankhadeep Chakrabortty及其研究团队取得一项新进展。经过不懈努力,他们揭示了重求和对AdS黑洞迟缓格林函数和灰体因子的影响。相关研究成果已于2024年11月12日在国际知名学术期刊《高能物理杂志》上发表。
该研究团队研究了渐近AdS黑洞中的延迟格林函数和灰体因子。
利用Heun方程的连接系数,这些系数以具有四个基本超多重态的,SU(2)超对称规范理论的Nekrasov-Shatashvili(NS)自由能来表示,研究人员在小视界极限下,推导了延迟格林函数和灰体因子的渐近展开式。
此外,研究人员还计算了由于NS函数瞬子部分的重求和过程,而产生的对这些渐近展开式的修正。
附:英文原文
Title: The effect of resummation on retarded Green’s function and greybody factor in AdS black holes
Author: Amado, Julin Barragn, Chakrabortty, Shankhadeep, Maurya, Arpit
Issue&Volume: 2024-11-12
Abstract: We investigate the retarded Green’s function and the greybody factor in asymptotically AdS black holes. Using the connection coefficients of the Heun equation, expressed in terms of the Nekrasov-Shatashvili (NS) free energy of an SU(2) supersymmetric gauge theory with four fundamental hypermultiplets, we derive asymptotic expansions for both the retarded Green’s function and the greybody factor in the small horizon limit. Furthermore, we compute the corrections to these asymptotic expansions resulting from the resummation procedure of the instanton part of the NS function.
DOI: 10.1007/JHEP11(2024)070
Source: https://link.springer.com/article/10.1007/JHEP11(2024)070