Branes intersecting at angles

Berkooz, Micha; Douglas, Michael R.; Leigh, Robert G.

doi:10.1016/s0550-3213(96)00452-x

Cited by 664 publications

(1,235 citation statements)

References 28 publications

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“…It looks that this contradicts with the worldsheet spectrum, but this is not the case. The fluctuation analysis of the remaining 7 transverse scalar fields provide 7 complex eigen modes at this mass level, which coincides with the worldsheet results in [21]. In the same manner, the number of the fluctuations at each mass level can be shown to be identical with that of corresponding string excitations.…”

Section: Tachyon Matter In Yang-mills and D-brane Recombinationsupporting

confidence: 83%

The shape of nonabelian D-branes

Hashimoto¹

2004

J. High Energy Phys.

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Abstract:We evaluate bulk distribution of energies, pressures and various Dbrane/F-string charges generated by nontrivial matrix configurations in nonabelian D-brane effective field theories, using supergravity source density formulas derived originally in Matrix theory. Off-diagonal elements of worldvolume nonabelian fields, especially transverse scalar fields, induce various interesting bulk structures exhibiting the shape of branes. First, we study the energy distribution of string-brane networks generated in the bulk by the Yang-Mills monopoles and the 1/4 BPS dyons, and confirm force balance of them. An application to the Yang-Mills description of recombination of intersecting D-branes gives results indicating presence of the tachyon matter. Second, we analyse the shape of fuzzy D-branes given by nonabelian scalar fields which are mutually noncommutative. We employ fuzzy S 2 , fuzzy S 4 and fuzzy cylinder/supertube as matrix configurations of N D0-branes representing higher dimensional noncommutative D-branes. We find that in the continuum (large N) limit the D-brane charge distributions become in the expected shape of a sphere or a cylinder with an infinitesimal thickness. However, the distributions found for finite N are difficult to interpret, which leaves a puzzle for a possible dual description in terms of higher dimensional D-branes. A resolution is provided with use of an ordering ambiguity in the charge density formulas.

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Section: Tachyon Matter In Yang-mills and D-brane Recombinationsupporting

confidence: 83%

The shape of nonabelian D-branes

Hashimoto¹

2004

J. High Energy Phys.

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“…In the particular class of models at hand, which basically consist of D6-branes at three different angles θ 1 , θ 2 , θ 3 with the real axis of the three T 2 , this amounts to imposing the well-known condition [82] θ 1 a + θ 2 a + θ 3 a = 0 mod 2π, ∀a.…”

Section: Consistency and Supersymmetry Conditionsmentioning

confidence: 99%

Chiral D-brane Models with Frozen Open String Moduli

Blumenhagen

Cvetič

Marchesano

et al. 2005

J. High Energy Phys.

128

287

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Most intersecting D-brane vacua in the literature contain additional massless adjoint fields in their low energy spectrum. The existence of these additional fields make it difficult to obtain negative beta functions and, eventually, asymptotic freedom. We address this important issue for N = 1 intersecting D-brane models, rephrasing the problems in terms of (open string) moduli stabilization. In particular, we consider a Z 2 × Z 2 orientifold construction where D6-branes wrap rigid 3-cycles and such extra adjoint fields do not arise. We derive the model building rules and consistency conditions for intersecting branes in this background, and provide N = 1 chiral vacua free of adjoint fields. More precisely, we construct a Pati-Salam-like model whose SU (4) gauge group is asymptotically free. We also comment on the application of these results for obtaining gaugino condensation in chiral D-brane models. Finally, we embed our constructions in the framework of flux compactification, and construct new classes of N = 1 and N = 0 chiral flux vacua. † Permanent address

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“…In the novel framework, on the other hand, the spontaneous breaking can be confined to the worldbrane at the string scale, and then communicate very weakly to the bulk [5]. This can for instance be achieved by turning on internal magnetic fields, or in T-dual language by rotating the branes in the compact space [17] [18].…”

Section: December 1998mentioning

confidence: 99%