Publication: Late time evolution of a nonminimally coupled scalar field system
Дата
2019
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We revisit the dynamics of a nonminimally coupled scalar field model in case of F(phi) R coupling with F(phi) = 1 - xi phi(2), the potentials V(phi) = V-0(1 + phi(p))(2) and V(phi) = V(0)e(lambda phi 2). We use an autonomous system to bring out new asymptotic regimes, and find stable de-Sitter solution. Under the chosen functional form of F(phi) and steep exponential potentials, a true de-Sitter solution is trivially satisfied for which the equation of state w(phi) similar or equal to -1, the effective gravitational constant G(eff) and field phi are constant that has been missed in the power law case and our previous study.
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Shahalam, M. Late time evolution of a nonminimally coupled scalar field system / Shahalam, M, Myrzakulov, R, Khlopov, MaximYu // General Relativity and Gravitation. - 2019. - 51. - № 9. - 10.1007/s10714-019-2610-6
URI
https://www.doi.org/10.1007/s10714-019-2610-6
https://www.scopus.com/record/display.uri?eid=2-s2.0-85073242446&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/18730
https://www.scopus.com/record/display.uri?eid=2-s2.0-85073242446&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000487010600003
https://openrepository.mephi.ru/handle/123456789/18730