Geometrical tachyon dynamics in the background of a bulk tachyon field

Papantonopoulos, E; Pappa, L; Zamarias, V

dc.contributor.author	Papantonopoulos, E	en
dc.contributor.author	Pappa, L	en
dc.contributor.author	Zamarias, V	en
dc.date.accessioned	2014-03-01T01:24:28Z
dc.date.available	2014-03-01T01:24:28Z
dc.date.issued	2006	en
dc.identifier.issn	1126-6708	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17269
dc.subject	D-branes	en
dc.subject	Tachyon condensation	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	OPEN STRING THEORY	en
dc.subject.other	D-BRANE DYNAMICS	en
dc.subject.other	MIRAGE COSMOLOGY	en
dc.subject.other	INFLATION	en
dc.subject.other	CONDENSATION	en
dc.subject.other	GRAVITY	en
dc.title	Geometrical tachyon dynamics in the background of a bulk tachyon field	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1126-6708/2006/05/038	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1126-6708/2006/05/038	en
heal.identifier.secondary	038	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	We study the dynamics of a D3-brane moving in the background of a bulk tachyon field of a D3-brane solution of Type-0 string theory. We show that the dynamics on the probe D3-brane can be described by a geometrical tachyon field rolling down its potential which is modified by a function of the bulk tachyon and inflation occurs at weak string coupling, where the bulk tachyon condenses, near the top of the geometrical tachyon potential. We also find a late accelerating phase when the bulk tachyon asymptotes to zero which in the geometrical tachyon picture corresponds to the minimum of the geometrical potential. © SISSA 2006.	en
heal.publisher	INT SCHOOL ADVANCED STUDIES	en
heal.journalName	Journal of High Energy Physics	en
dc.identifier.doi	10.1088/1126-6708/2006/05/038	en
dc.identifier.isi	ISI:000238161200042	en
dc.identifier.volume	2006	en
dc.identifier.issue	5	en