Complex marginal deformations of D3-brane geometries, their Penrose limits and giant gravitons

Avramis, SD; Sfetsos, K; Zoakos, D

dc.contributor.author	Avramis, SD	en
dc.contributor.author	Sfetsos, K	en
dc.contributor.author	Zoakos, D	en
dc.date.accessioned	2014-03-01T01:26:02Z
dc.date.available	2014-03-01T01:26:02Z
dc.date.issued	2007	en
dc.identifier.issn	0550-3213	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17890
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	NONCOMMUTATIVE MODULI SPACES	en
dc.subject.other	DE-SITTER SUPERGRAVITY	en
dc.subject.other	N GAUGE-THEORY	en
dc.subject.other	FIELD-THEORIES	en
dc.subject.other	FINITE-TEMPERATURE	en
dc.subject.other	WILSON LOOPS	en
dc.subject.other	T-DUALITY	en
dc.subject.other	BACKGROUNDS	en
dc.subject.other	STRINGS	en
dc.subject.other	OPERATORS	en
dc.title	Complex marginal deformations of D3-brane geometries, their Penrose limits and giant gravitons	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.nuclphysb.2007.07.017	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.nuclphysb.2007.07.017	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	We apply the Lunin-Maldacena construction of gravity duals to beta-deformed gauge theories to a class of type 1113 backgrounds with U(I)3 global symmetry, which include the multicenter D3-brane backgrounds dual to the Coulomb branch of N = 4 super-Yang-Mills and the rotating D3-brane backgrounds dual to the theory at finite temperature and chemical potential. After a general discussion, we present the full form of the deformed metrics for three special cases, which can be used for the study of various aspects of the marginally-deformed gauge theories. We also construct the Penrose limits of the solutions dual to the Coulomb branch along a certain set of geodesics and, for the resulting PP-wave metrics, we examine the effect of beta-deformations on the giant graviton states. We find that giant gravitons exist only up to a critical value of the sigma-deformation parameter, are not degenerate in energy with the point graviton, and remain perturbatively stable. Finally, we probe the sigma-deformed multicenter solutions by examining the static heavy-quark potential by means of Wilson loops. We find situations that give rise to complete screening as well as linear confinement, with the latter arising is in intriguing way reminiscent of phase transitions in statistical systems. (C) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Nuclear Physics B	en
dc.identifier.doi	10.1016/j.nuclphysb.2007.07.017	en
dc.identifier.isi	ISI:000251405800002	en
dc.identifier.volume	787	en
dc.identifier.issue	1-2	en
dc.identifier.spage	55	en
dc.identifier.epage	97	en