Classical solutions for exotic instantons?

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dc.creatorBillo', Marco
dc.creatorFrau, Marialuisa
dc.creatorGallot, Laurent
dc.creatorLerda, Alberto
dc.creatorPesando, Igor
dc.date2009-01-13
dc.date2009-03-04
dc.date.accessioned2026-07-07T12:56:53Z
dc.date.available2026-07-07T12:56:53Z
dc.descriptionWe consider the D7/D(--1) system in Type I' as a prototypical "exotic" brane instanton. With respect to systems such as the D3/D(-1) ones, which correspond to gauge instantons in four dimensions, exotic systems lack the bosonic mixed moduli w of the ADHM construction, related to the instanton size, and their possible field-theoretical interpretation as classical solutions is an important open question. For the system at hand, we propose that it corresponds to the point-like limit of the eight-dimensional so-called SO(8) instanton solution. This configuration is a solution of the quartic term of the non-abelian D7 action, i.e., the term which stays finite in the limit in which alpha' goes to zero with the string coupling fixed that preserves the D(-1) effects. As a necessary consistency condition, we check that the next order term in the non-abelian effective action vanishes on the SO(8) solution so that the limit we take is well-defined.
dc.description39 pages, 3 figures. Some references added, and minor corrections: a more precise statement of eq. (3.18) and a few coefficients in eq. (3.10)
dc.identifierhttps://arxiv.org/abs/0901.1666
dc.identifierhttp://arxiv.org/abs/0901.1666
dc.identifierJHEP 0903:056,2009
dc.identifierdoi:10.1088/1126-6708/2009/03/056
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224737
dc.subjectHigh Energy Physics - Theory
dc.titleClassical solutions for exotic instantons?
dc.typetext

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