STRING-GENERATED GRAVITY MODELS WITH CUBIC CURVATURE TERMS

• Type: Article in International Scientific Journal
• Date: 1989

Authors

BENTO, MC (Author) Other; BERTOLAMI, O (Author) Other

Journal

Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 228

Pages: 348-354

ISSN: 0370-2693

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 27 Citations

Scopus - 29 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-007-1SV

DOI: 10.1016/0370-2693(89)91557-8

Abstract (EN): We study solutions to the gravity models which are obtained in the low-energy limit of the bosonic string theory up to order ¿¿2 (cubic curvature terms). We show that these models have flat, de Sitter and anti-de Sitter spaces as solutions but the cosmological branches are unstable. We consider the static spherically symmetric solutions and discuss the effect of an explicit cosmological term on stability. © 1989.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7