Article
Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time
Modern Physics Letters A
(2015)
Abstract
For non-zero cosmological constant Λ, we show that the barotropic FRW cosmologies as worked out in the comoving time lead in the radiation-dominated case to scale factors of identical form as for the Chiellini dissipative scale factors in conformal time obtained recently by us in Phys. Lett. A 379 (2015) 882-887. This is due to the Ermakov equation which is obtained in this case. For zero cosmological constant, several textbook solutions are provided as particular cases of Λ ≠ 0.
Disciplines
Publication Date
June, 2015
DOI
https://doi.org/10.1142/S021773231550100x
Citation Information
S.C. Mancas, Haret C. Rosu and Pisin Chen. "Barotropic FRW Cosmologies with Chiellini Damping in Comoving Time" Modern Physics Letters A Vol. 30 Iss. 20 (2015) p. 1 - 5 Available at: http://works.bepress.com/stefani_mancas/103/