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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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Official URL: http://dx.doi.org/10.1103/PhysRevD.82.043516
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 |
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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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