On supergravity solutions of branes in Melvin universes

2005/12/08 by Mohsen Alishahiha, Batool Safarzadeh, Hossein Yavartanoo · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane cosmology #Cosmology and Gravitation Theories #Mathematical physics #Noncommutative and Quantum Gravity Theories #Philosophy #Physics #Supergravity #Supersymmetry #Theoretical physics #hep-th

paper · pdf · doi:10.1088/1126-6708/2006/01/153

published as JHEP0601:153,2006 · 25 pages, latex file; v2: typos corrected, Refs. added

arxiv created 2005/12/08 · openalex publication_date 2006/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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.

Citations

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Cited by

• Symmetry, gravity and noncommutativity