RT Journal Article
T1 Little rip in classical and quantum f(R) cosmology
A1 Borislavov Vassilev, Teodor
A1 Mariam Bouhmadi López, Mariam
A1 Martín Moruno, María Del Prado
AB The little rip is a cosmological abrupt event predicted by some phantom dark energy models that could describe the future evolution of our Universe. This event can be interpreted as a big rip singularity delayed indefinitely, although in those models bounded structures will be destroyed in a finite cosmic time in the future. In this work, we analyze the little rip cosmology from a classical and quantum point of view within the scheme of alternative metric f(R) theories of gravity. The quantum analysis is performed in the framework of f(R) quantum geometrodynamics by means of the modified Wheeler-DeWitt equation. In this context, we show that the DeWitt criterion can be satisfied. Similar to what happens in general relativity, this result points toward the avoidance of the little rip in f(R) quantum cosmology.
PB American Physical Society
SN 2470-0010
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/100864
UL https://hdl.handle.net/20.500.14352/100864
LA eng
NO Vasilev, T. B., Bouhmadi-López, M., & Martín-Moruno, P. (2021). Little rip in classical and quantum f (R) cosmology. Physical Review D, 103(12), 124049.
NO Ministerio de Economía y Competitividad (España)
NO European Commission
NO Universidad Complutense de Madrid
NO Banco de Santander
NO Ikerbasque
NO Eusko Jaurlaritza
DS Docta Complutense
RD 28 dic 2025