Frazer, Jonathan and Liddle, Andrew R (2010) Stability of multifield cosmological solutions in the presence of a fluid. Physical Review D, 82 (4). ISSN 1550-7998

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Abstract

We explore the stability properties of multifield solutions in the presence of a perfect fluid, as appropriate to assisted quintessence scenarios. We show that the stability condition for multiple fields phi(i) in identical potentials V-i is simply d(2)V(i)/d phi(2)(i) > 0, exactly as in the absence of a fluid. A possible new instability associated with the fluid is shown not to arise in situations of cosmological interest.

Item Type:	Article
Additional Information:	Article Number: 043516
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User:	Jonathan Frazer
Date Deposited:	06 Feb 2012 19:47
Last Modified:	02 Jul 2019 20:48
URI:	http://sro.sussex.ac.uk/id/eprint/22162

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