Non-Linear Sigma Model and asymptotic freedom at the Lifshitz point

Anagnostopoulos, K; Farakos, K; Pasipoularides, P; Tsapalis, A

dc.contributor.author	Anagnostopoulos, K	en
dc.contributor.author	Farakos, K	en
dc.contributor.author	Pasipoularides, P	en
dc.contributor.author	Tsapalis, A	en
dc.date.accessioned	2014-03-01T01:59:26Z
dc.date.available	2014-03-01T01:59:26Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28932
dc.relation.uri	http://arxiv.org/abs/1007.0355	en
dc.subject	Beta Function	en
dc.subject	Critical Exponent	en
dc.subject	Sigma Model	en
dc.subject	Non Linear Sigma Model	en
dc.title	Non-Linear Sigma Model and asymptotic freedom at the Lifshitz point	en
heal.type	journalArticle	en
heal.publicationDate	2010	en
heal.abstract	We construct the general O(N)-symmetric non-linear sigma model in 2+1spacetime dimensions at the Lifshitz point with dynamical critical exponentz=2. For a particular choice of the free parameters, the model isasymptotically free with the beta function coinciding to the one for theconventional sigma model in 1+1 dimensions. In this case, the model admits alsoa simple description	en