Noncommutative scalar field coupled to gravity

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Bertolami, O (Author) Other; Guisado, L (Author) Other

Journal

Title: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 67

ISSN: 1550-7998

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 35 Citations

Scopus - 38 Citations

Other information

Authenticus ID: P-000-J1B

DOI: 10.1103/physrevd.67.025001

Abstract (EN): A model for a noncommutative scalar field coupled to gravity is proposed via an extension of the Moyal product. It is shown that there are solutions compatible with homogeneity and isotropy to first nontrivial order in the perturbation of the star product, with the gravity sector described by a flat Robertson-Walker metric. We show that in the slow-roll regime of a typical chaotic inflationary scenario, noncommutativity has negligible impact.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6