Vacuum solutions of a gravity model with vector-induced spontaneous Lorentz symmetry breaking

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Orfeu Bertolami (Author) Other; Jorge Páramos (Author) Other

Journal

Title: Physical Review D: Particles and fields

Vol. 72

Initial page: 044001

ISSN: 0556-2821

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 97 Citations

Scopus - 114 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-28D

DOI: 10.1103/PhysRevD.72.044001

Abstract (EN): We study the vacuum solutions of a gravity model where Lorentz symmetry is spontaneously broken once a vector field acquires a vacuum expectation value. Results are presented for the purely radial Lorentz symmetry breaking (LSB), radial/temporal LSB and axial/temporal LSB. The purely radial LSB result corresponds to new black hole solutions. When possible, Parametrized Post-Newtonian (PPN) parameters are computed and observational boundaries used to constrain the Lorentz symmetry breaking scale.

Language: Portuguese

Type (Professor's evaluation): Scientific