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On Supergravity Solutions of Branes in Melvin Universes

Mohsen Alishahiha·Batool Safarzadeh·Hossein Yavartanoo
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Abstract

We study supergravity solutions of type II branes wrapping a Melvin universe. These solutions provide the gravity description of non-commutative field theories with non-constant non-commutative parameter. Typically these theories are non-supersymmetric, though they exhibit some feature of their corresponding supersymmetric theories. An interesting feature of these non-commutative theories is that there is a critical length in the theory in which for distances larger than this length the effects of non-commutativity become important and for smaller distances these effects are negligible. Therefore we would expect to see this kind of non-commutativity in large distances which might be relevant in cosmology. We also study M5-brane wrapping on 11-dimensional Melvin universe and its descendant theories upon compactifying on a circle.

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Mohsen Alishahiha, Batool Safarzadeh, Hossein Yavartanoo. 2005-12-08. On Supergravity Solutions of Branes in Melvin Universes. https://doi.org/10.1088/1126-6708%2F2006%2F01%2F153

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