Phys. Rev. D 79, 103515 (2009) [9 pages]

Dynamics of a scalar field in Robertson-Walker spacetimes

Abstract

References

Citing Articles (3)

Download: PDF (159 kB) Buy this article Export: BibTeX or EndNote (RIS)

Edmund J. Copeland^1,*, Shuntaro Mizuno^1,2,†, and Maryam Shaeri^1,‡
¹School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
²Research Center for the Early Universe (RESCEU), School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan

Received 15 April 2009; published 14 May 2009

We analyze the dynamics of a single scalar field in Friedmann-Robertson-Walker universes with spatial curvature. We obtain the fixed point solutions which are shown to be late time attractors. In particular, we determine the corresponding scalar field potentials which correspond to these stable solutions. The analysis is quite general and incorporates expanding and contracting universes with both positive and negative scalar potentials. We demonstrate that the known power law, exponential, and de Sitter solutions are certain limits of our general set of solutions.

URL:

http://link.aps.org/doi/10.1103/PhysRevD.79.103515

DOI:

10.1103/PhysRevD.79.103515

PACS:

98.80.Cq

^*ed.copeland@nottingham.ac.uk

^†shuntaro.mizuno@nottingham.ac.uk

^‡ppxms1@nottingham.ac.uk

About | Terms and Conditions | Subscriptions | Search | Help

Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.

Citation Search:

Phys. Rev. D 79, 103515 (2009) [9 pages]

Dynamics of a scalar field in Robertson-Walker spacetimes