caa a22 4500 445386592 CHVBK 20180317143034.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10714-011-1208-4 doi (NATIONALLICENCE)springer-10.1007/s10714-011-1208-4 Horizon problem remediation via deformed phase space [Elektronische Daten] [S. Rasouli, Mehrdad Farhoudi, Nima Khosravi] We investigate the effects of a special kind of dynamical deformation between the momenta of the scalar field of the Brans-Dicke theory and the scale factor of the FRW metric. This special choice of deformation includes linearly a deformation parameter. We trace the deformation footprints in the cosmological equations of motion when the BD coupling parameter goes to infinity. One class of the solutions gives a constant scale factor in the late time that confirms the previous result obtained via another approach in the literature. This effect can be interpreted as a quantum gravity footprint in the coarse grained explanation. The another class of the solutions removes the big bang singularity, and the accelerating expansion region has an infinite temporal range which overcomes the horizon problem. After this epoch, there is a graceful exiting by which the universe enters in the radiation dominated era. Springer Science+Business Media, LLC, 2011 Deformed phase space nationallicence Brans-Dicke theory nationallicence Noncommutative phase space nationallicence Quantum cosmology nationallicence Rasouli S. Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut Farhoudi Mehrdad Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut Khosravi Nima Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2895-2910 0001-7701 43:10<2895 2011 43 10714 https://doi.org/10.1007/s10714-011-1208-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-011-1208-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rasouli S. Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut NATIONALLICENCE 700 1- Farhoudi Mehrdad Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut NATIONALLICENCE 700 1- Khosravi Nima Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/10(2011-10-01), 2895-2910 0001-7701 43:10<2895 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer