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Noncommutative scalar field minimally coupled to gravity

Title
Noncommutative scalar field minimally coupled to gravity
Type
Article in International Scientific Journal
Year
2005
Authors
Bertolami, O
(Author)
Other
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Journal
Vol. 20
Pages: 1359-1369
ISSN: 0217-7323
Publisher: World Scientific
Scientific classification
FOS: Natural sciences > Physical sciences
Other information
Authenticus ID: P-000-2VS
Abstract (EN): A model for noncommutative scalar fields coupled to gravity based on the generalization of the Moyal product is proposed. Solutions compatible with homogeneous and isotropic flat Robertson-Walker spaces to first non-trivial order in the perturbation of the star-product are presented. It is shown that in the context of a typical chaotic inflationary scenario, at least in the slow-roll regime, noncommutativity yields no observable effect.
Language: English
Type (Professor's evaluation): Scientific
Contact: orfeu@cosmos.ist.utl.pt
No. of pages: 11
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