Green’s functions in perturbative quantum gravity

The European Physical Journal C

Bhabani Prasad Mandal¹  Sudhaker Upadhyay² 

[1] Department of Physics, Banaras Hindu University, 221005, Varanasi, India;Department of Physics, Indian Institute of Technology Kanpur, 208016, Kanpur, India;

关键词: Gauge Theory;    BRST Transformation;    Ghost Propagator;    Path Integral Measure;    Perturbative Quantum Gravity;   

DOI  :  10.1140/epjc/s10052-015-3549-8

来源: Springer

【 摘 要 】

We show that the Green’s functions in a non-linear gauge in the theory of perturbative quantum gravity is expressed as a series in terms of those in linear gauges. This formulation also holds for operator Green’s functions. We further derive the explicit relation between the Green’s functions in the theory of perturbative quantum gravity in a pair of arbitrary gauges. This process involves some sort of modified FFBRST transformations which are derivable from infinitesimal field-dependent BRST transformations.

【 授权许可】

CC BY