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An eight-dimensional approach to G_2 manifolds

Hernandez, R and Sfetsos, K (2002) An eight-dimensional approach to G_2 manifolds Phys.Lett. B, 536. pp. 294-304.

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We develop a systematic approach to G_2 holonomy manifolds with an SU(2)xSU(2) isometry using maximal eight-dimensional gauged supergravity to describe D6-branes wrapped on deformed three-spheres. A quite general metric ansatz that generalizes the celebrated Bryant-Salamon metric involves nine functions. We show that only six of them are the independent ones and derive the general first order system of differential equations that they obey. As a byproduct of our analysis, we generalize the notion of the twist that relates the spin and gauge connections in a way that involves non-trivially the scalar fields.

Item Type: Article
Authors :
Date : 20 February 2002
Identification Number : 10.1016/S0370-2693(02)01862-2
Uncontrolled Keywords : hep-th, hep-th, math.DG
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:26
Last Modified : 17 May 2017 12:26

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