TY - JOUR
T1 - Fate of the phantom dark energy universe in semiclassical gravity. II. Scalar phantom fields
AU - De Haro, Jaume
AU - Amoros, Jaume
AU - Elizalde, Emilio
PY - 2012/10/16
Y1 - 2012/10/16
N2 - Quantum corrections coming from massless fields conformally coupled with gravity are studied, in order to see if they can lead to avoidance of the annoying big rip singularity which shows up in a flat Friedmann-Robertson-Walker universe filled with dark energy and modeled by a scalar phantom field. The dynamics of the model are discussed for all values of the two parameters, named α>0 and β<0, corresponding to the regularization process. The new results are compared with the ones obtained in previously, where dark energy was modeled by means of a phantom fluid with equation of state P=ωρ, with ω<-1. © 2012 American Physical Society.
AB - Quantum corrections coming from massless fields conformally coupled with gravity are studied, in order to see if they can lead to avoidance of the annoying big rip singularity which shows up in a flat Friedmann-Robertson-Walker universe filled with dark energy and modeled by a scalar phantom field. The dynamics of the model are discussed for all values of the two parameters, named α>0 and β<0, corresponding to the regularization process. The new results are compared with the ones obtained in previously, where dark energy was modeled by means of a phantom fluid with equation of state P=ωρ, with ω<-1. © 2012 American Physical Society.
U2 - 10.1103/PhysRevD.86.083528
DO - 10.1103/PhysRevD.86.083528
M3 - Article
VL - 86
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 8
M1 - 083528
ER -