$η/s$ in a strongly coupled QFT
Year: 2016
Type: preprint
Abstract: We consider $O(N)$ $gφ^4$ theory with the coupling $g$ being large, and calculate shear viscosity to entropy density ratio ($η/s$). The final result for $η/s$ has a form remarkably similar to that obtained from string theory calculations via the AdS/CFT conjecture. The method adopted can be used to compute quantities of interest in other theories as well with some modifications and reveals some very interesting features within the considered theory.
Source: arXiv (Cornell University)
Author: Mahajan, Namit
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4394644099