Proper acceleration, geometric tachyon and dynamics of a fundamental string near D$p$ branes

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dc.creatorDas, Ashok
dc.creatorPanda, Sudhakar
dc.creatorRoy, Shibaji
dc.date2008-06-20
dc.date2009-01-09
dc.date.accessioned2026-07-07T12:41:25Z
dc.date.available2026-07-07T12:41:25Z
dc.descriptionWe present a detailed analysis of our recent observation that the origin of the geometric tachyon, which arises when a D$p$-brane propagates in the vicinity of a stack of coincident NS5-branes, is due to the proper acceleration generated by the background dilaton field. We show that when a fundamental string (F-string), described by the Nambu-Goto action, is moving in the background of a stack of coincident D$p$-branes, the geometric tachyon mode can also appear since the overall conformal mode of the induced metric for the string can act as a source for proper acceleration. We also studied the detailed dynamics of the F-string as well as the instability by mapping the Nambu-Goto action of the F-string to the tachyon effective action of the non-BPS D-string. We qualitatively argue that the condensation of the geometric tachyon is responsible for the (F,D$p$) bound state formation.
dc.description26 pages, v2: added references, v3: one ref. updated, to appear in Class. and Quant. Gravity
dc.identifierhttps://arxiv.org/abs/0806.3363
dc.identifierhttp://arxiv.org/abs/0806.3363
dc.identifierClass.Quant.Grav.26:055004,2009
dc.identifierdoi:10.1088/0264-9381/26/5/055004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219766
dc.subjectHigh Energy Physics - Theory
dc.titleProper acceleration, geometric tachyon and dynamics of a fundamental string near D$p$ branes
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