PhysRevD.82.043516.pdf (92.72 kB)
Stability of multifield cosmological solutions in the presence of a fluid
journal contribution
posted on 2023-06-08, 00:00 authored by Jonathan Frazer, Andrew R LiddleWe 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.
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- Published
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- Published version
Journal
Physical Review DISSN
1550-7998Publisher
American Physical SocietyExternal DOI
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4Volume
82Department affiliated with
- Physics and Astronomy Publications
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Article Number: 043516Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2017-03-13Usage metrics
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