Dynamical gauge symmetry breaking and superconductivity in three-dimensional systems

Farakos, K; Mavromatos, NE

dc.contributor.author	Farakos, K	en
dc.contributor.author	Mavromatos, NE	en
dc.date.accessioned	2014-03-01T01:13:42Z
dc.date.available	2014-03-01T01:13:42Z
dc.date.issued	1998	en
dc.identifier.issn	0217-7323	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12669
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0000820022&partnerID=40&md5=597e99cc58a0731559b16ef82d9a046c	en
dc.subject.classification	Physics, Nuclear	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.classification	Physics, Mathematical	en
dc.subject.other	2-DIMENSIONAL SUPERCONDUCTIVITY	en
dc.subject.other	QUANTUM ANTIFERROMAGNET	en
dc.subject.other	LATTICE	en
dc.subject.other	FERMIONS	en
dc.subject.other	MODEL	en
dc.subject.other	PARITY	en
dc.subject.other	BOSONIZATION	en
dc.subject.other	VIOLATION	en
dc.subject.other	FLAVORS	en
dc.subject.other	HOLES	en
dc.title	Dynamical gauge symmetry breaking and superconductivity in three-dimensional systems	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	We discuss dynamical breaking of non-Abelian gauge groups in three-dimensional (lattice) gauge systems via the formation of fermion condensates. A physically relevant example, motivated by condensed matter physics, is that of a fermionic gauge theory with group SU(2) x U-S(1) x U-E(1). In the strong U-S(1) region, the SU(2) symmetry breaks down to a U(1), due to the formation of a parity-invariant fermion condensate. We conjecture a phase diagram for the theory involving a critical line, which separates the regions of broken SU(2) symmetry from those where the symmetry is restored. In the broken phase, the effective Abelian gauge theory is closely related to an earlier model of two-dimensional parity-invariant superconductivity in doped antiferromagnets. The superconductivity in the model occurs in the Kosterlitz-Thouless mode, since strong phase fluctuations prevent the existence of a local order parameter. Some physical consequences of the SU(2) x U-S(1) phase diagram for the (doping-dependent) parameter space of this condensed matter model are briefly discussed.	en
heal.publisher	WORLD SCIENTIFIC PUBL CO PTE LTD	en
heal.journalName	Modern Physics Letters A	en
dc.identifier.isi	ISI:000073980000003	en
dc.identifier.volume	13	en
dc.identifier.issue	13	en
dc.identifier.spage	1019	en
dc.identifier.epage	1033	en