Abstract:
Exact solutions to the semiclassical backreaction equations with an unquantised Dirac field are found when the ratio of the renormalisation parameters beta and alpha is 9/4. For alpha (0 there is a one-parameter family of solutions which do not have particle horizons and a two-parameter family of solutions which oscillate at about the Planck frequency and, on average, behave asymptotically as a matter-dominated Friedmann solution. There is a two-parameter family with an asymptotically de Sitter stage, which is stable for any alpha )0 and beta )0.
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Citas:
---------- APA ----------
Chimento, L.P., Jakubi, A.S. & Pensa, F.G.
(1990)
. Cosmological solutions of the semiclassical Einstein-Dirac equations. Classical and Quantum Gravity, 7(9), 1561-1565.
http://dx.doi.org/10.1088/0264-9381/7/9/008---------- CHICAGO ----------
Chimento, L.P., Jakubi, A.S., Pensa, F.G.
"Cosmological solutions of the semiclassical Einstein-Dirac equations"
. Classical and Quantum Gravity 7, no. 9
(1990) : 1561-1565.
http://dx.doi.org/10.1088/0264-9381/7/9/008---------- MLA ----------
Chimento, L.P., Jakubi, A.S., Pensa, F.G.
"Cosmological solutions of the semiclassical Einstein-Dirac equations"
. Classical and Quantum Gravity, vol. 7, no. 9, 1990, pp. 1561-1565.
http://dx.doi.org/10.1088/0264-9381/7/9/008---------- VANCOUVER ----------
Chimento, L.P., Jakubi, A.S., Pensa, F.G. Cosmological solutions of the semiclassical Einstein-Dirac equations. 1990;7(9):1561-1565.
http://dx.doi.org/10.1088/0264-9381/7/9/008