Flavoured Large N Gauge Theory in an External Magnetic Field

Simple item page
dc.creatorFilev, Veselin G.
dc.creatorJohnson, Clifford V.
dc.creatorRashkov, R. C.
dc.creatorViswanathan, K. S.
dc.date2006-12-29
dc.date2007-06-29
dc.date.accessioned2026-07-07T11:23:33Z
dc.date.available2026-07-07T11:23:33Z
dc.descriptionWe consider a D7-brane probe of AdS$_{5}\times S^5$ in the presence of pure gauge $B$-field. In the dual gauge theory, the $B$-field couples to the fundamental matter introduced by the D7-brane and acts as an external magnetic field. The $B$-field supports a 6-form Ramond-Ramond potential on the D7-branes world volume that breaks the supersymmetry and enables the dual gauge theory to develop a non-zero fermionic condensate. We explore the dependence of the fermionic condensate on the bare quark mass $m_{q}$ and show that at zero bare quark mass a chiral symmetry is spontaneously broken. A study of the meson spectrum reveals a coupling between the vector and scalar modes, and in the limit of weak magnetic field we observe Zeeman splitting of the states. We also observe the characteristic $\sqrt{m_{q}}$ dependence of the ground state corresponding to the Goldstone boson of spontaneously broken chiral symmetry.
dc.description22 pages, 7 figures, references added, few typos corrected
dc.identifierhttps://arxiv.org/abs/hep-th/0701001
dc.identifierhttp://arxiv.org/abs/hep-th/0701001
dc.identifierJHEP0710:019,2007
dc.identifierdoi:10.1088/1126-6708/2007/10/019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194926
dc.subjectHigh Energy Physics - Theory
dc.titleFlavoured Large N Gauge Theory in an External Magnetic Field
dc.typetext

Files

Collections

arXiv