Holographic Beta functions for the Generalized Sine Gordon Theory

Autor:	Oak, Prafulla, Sathiapalan, B.
Rok vydání:	2018
Předmět:	High Energy Physics - Theory
Zdroj:	Phys. Rev. D 99, 046009 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.99.046009
Popis:	The Sine Gordon theory is generalized to include several cosine terms. This is similar to the world sheet description of a string propagating in a tachyon background. This model is studied as a (boundary) 2d euclidean field theory and also using an $AdS_3$ holographic bulk dual. The beta functions for the cosine vertex of this modified theory are first computed in the boundary using techniques based on the exact RG. The beta functions are also computed holographically using position space and momentum space techniques. The results are in agreement with each other and with earlier computations. The beta functions of the field strength renormalization are computed in position space. They match with the earlier results in \cite{Oak:2017trw}. Comment: 43 pages, 3 figures, PRD version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1809.10758 Zobrazit plný text záznamu View this record from Arxiv