Fate of Z(N) walls in hot holographic QCD

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dc.creatorYee, Ho-Ung
dc.date2009-01-06
dc.date2009-02-10
dc.date.accessioned2026-07-07T13:04:51Z
dc.date.available2026-07-07T13:04:51Z
dc.descriptionWe first study Z(N) walls in a deconfined phase of Witten's D4-brane background of pure SU(N) Yang-Mills theory, motivated by a recent work in the case of N=4 SYM. Similarly to it, we propose that for a large wall charge k ~ N, it is described by k D2-branes blown up into a NS5-brane wrapping S^3 inside S^4 via Myers effect, and we calculate the tension by suitable U-duality. We find a precise Casimir scaling for the tension formula. We then study the fate of Z(N)-vacua in a presence of fundamental flavors in quenched approximation via gauge/gravity correspondence. In the case of D3/D7 system where one can vary the mass m_q of flavors, we show that there is a phase transition at T_c ~ m_q, below which the Z(N)-vacua survive while they are lifted above the critical temperature. We analytically calculate the energy lift of k'th vacua in the massless case, both in the D3/D7 system and in the Sakai-Sugimoto model.
dc.description24 pages, v2: references updated, v3: A clarification on the meaning of Z(N) walls in Euclidean space added, citations updated
dc.identifierhttps://arxiv.org/abs/0901.0705
dc.identifierhttp://arxiv.org/abs/0901.0705
dc.identifierJHEP 0904:029,2009
dc.identifierdoi:10.1088/1126-6708/2009/04/029
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227309
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFate of Z(N) walls in hot holographic QCD
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