2016/05/20 by Namit Mahajan, Mahajan, Namit
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.1605.06300
5 pages
arxiv created 2016/05/20 · openalex publication_date 2016/05/20 · arxiv updated 2016/05/23 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28
We consider O(N) gφ4 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.