Ricci-flat deformation of orbifolds and localized tachyonic modes

Simple item page
dc.creatorImamura, Yosuke
dc.creatorKoyama, Fumikazu
dc.creatorNobuyama, Ryuji
dc.date2004-06-08
dc.date2004-11-22
dc.date.accessioned2026-07-07T10:49:58Z
dc.date.available2026-07-07T10:49:58Z
dc.descriptionWe study Ricci-flat deformations of orbifolds in type II theory. We obtain a simple formula for mass corrections to the twisted modes due to the deformations, and apply it to originally tachyonic and massless states in several examples. In the case of supersymmetric orbifolds, we find that tachyonic states appear when the deformation breaks all the supersymmetries. We also study nonsupersymmetric orbifolds C^2/Z_{2N(2N+1)}, which is T-dual to N type 0 NS5-branes. For N>=2, we compute mass corrections for states, which have string scale tachyonic masses. We find that the corrected masses coincide to ones obtained by solving the wave equation for the tachyon field in the smeared type 0 NS5-brane background geometry. For N=1, we show that the unstable mode representing the bubble creation is the unique tachyonic mode.
dc.description20 pages, minor collections
dc.identifierhttps://arxiv.org/abs/hep-th/0406070
dc.identifierhttp://arxiv.org/abs/hep-th/0406070
dc.identifierJHEP0411:042,2004
dc.identifierdoi:10.1088/1126-6708/2004/11/042
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184399
dc.subjectHigh Energy Physics - Theory
dc.titleRicci-flat deformation of orbifolds and localized tachyonic modes
dc.typetext

Files

Collections

arXiv