Symmetry breaking and restoration in Lifshitz type theories

Farakos, K; Metaxas, D

dc.contributor.author	Farakos, K	en
dc.contributor.author	Metaxas, D	en
dc.date.accessioned	2014-03-01T02:14:46Z
dc.date.available	2014-03-01T02:14:46Z
dc.date.issued	2012	en
dc.identifier.issn	03702693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30107
dc.title	Symmetry breaking and restoration in Lifshitz type theories	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.physletb.2012.01.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.physletb.2012.01.005	en
heal.publicationDate	2012	en
heal.abstract	We consider the one-loop effective potential at zero and finite temperature in scalar field theories with anisotropic space-time scaling. For z= 2, there is a symmetry breaking term induced at one loop at zero temperature and we find symmetry restoration through a first-order phase transition at high temperature. For z= 3, we considered at first the case with a positive mass term at tree level and found no symmetry breaking effects induced at one loop, and then we study the case with a negative mass term at tree level where we cannot conclude about symmetry restoration effects at high temperature because of the imaginary parts that appear in the effective potential for small values of the scalar field. © 2012 Elsevier B.V.	en
heal.journalName	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics	en
dc.identifier.doi	10.1016/j.physletb.2012.01.005	en
dc.identifier.volume	707	en
dc.identifier.issue	5	en
dc.identifier.spage	562	en
dc.identifier.epage	565	en