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D-brane probes on G...
D-brane probes on G(2) orbifolds
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- Ferretti, Gabriele, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Salomonson, Per, 1948 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Tsimpis, Dimitrios (författare)
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; 03, s. 04-
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- We consider type-IIB string theory on a seven dimensional orbifold with holonomy in G2. The motivation is to use D1-branes as probes of the geometry. The low energy theory on the D1-brane is a sigma-model with two real supercharges (N = (1,1) in two dimensional language). We study in detail the closed and open string sectors and propose a coupling of the twisted fields to the brane that modifies the vacuum moduli space so that the singularity at the origin is removed. Instead of coming from D-terms, which are not present here, the modification comes from a ``twisted'' mass term for the seven scalar multiplets on the brane. The proposed mechanism involves a generalization of the moment map.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- G2
- branes
- string theory
- orbifold
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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