THE EFFECT OF THE 2D GRAVITY ON THE BETA-FUNCTIONS OF A NONLINEAR SIGMA-MODEL

DIAMANDIS, GA; GEORGALAS, BC; LAHANAS, AB; PAPANTONOPOULOS, E

dc.contributor.author	DIAMANDIS, GA	en
dc.contributor.author	GEORGALAS, BC	en
dc.contributor.author	LAHANAS, AB	en
dc.contributor.author	PAPANTONOPOULOS, E	en
dc.date.accessioned	2014-03-01T01:41:33Z
dc.date.available	2014-03-01T01:41:33Z
dc.date.issued	1992	en
dc.identifier.issn	0370-2693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23526
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	QUANTUM CONSTRAINT ALGEBRA	en
dc.subject.other	STRING THEORY	en
dc.subject.other	FRACTAL STRUCTURE	en
dc.subject.other	QUANTIZATION	en
dc.subject.other	FIELDS	en
dc.title	THE EFFECT OF THE 2D GRAVITY ON THE BETA-FUNCTIONS OF A NONLINEAR SIGMA-MODEL	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	We study the beta-functions of a non-linear sigma-model coupled to two-dimensional gravity. Keeping the two-dimensional geometry classical, we present, in the light cone gauge, a simple diagrammatic derivation of the induced 2D gravitational action from the non-linear sigma-model. Quantizing the two-dimensional geometry, we discuss the gravitational dressing of the beta-functions, and establish the equivalence of the conformal and light cone gauges in a consistent dimensional regularization scheme. By a direct calculation in the light cone gauge we find that the beta-functions receive gravitational corrections in conformity with that obtained from a (D + 1)-dimensional sigma-model in the conformal gauge.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	PHYSICS LETTERS B	en
dc.identifier.isi	ISI:A1992HL56800004	en
dc.identifier.volume	277	en
dc.identifier.issue	4	en
dc.identifier.spage	398	en
dc.identifier.epage	404	en