Chin. Phys. Lett.  2016, Vol. 33 Issue (05): 059501    DOI: 10.1088/0256-307X/33/5/059501
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
Dynamical Study of a Constant Viscous Dark Energy Model in Classical and Loop Quantum Cosmology
Sara Benchikh**, Noureddine Mebarki, Dalel Aberkane
Laboratoire de Physique Mathematique et Subatomique, Mentouri University, Route Ain El Bey, Constantine 25000, Algeria
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Sara Benchikh, Noureddine Mebarki, Dalel Aberkane 2016 Chin. Phys. Lett. 33 059501
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Abstract Dynamical behaviors and stability properties of a flat space Friedmann–Robertson–Walker universe filled with pressureless dark matter and viscous dark energy are studied in the context of standard classical and loop quantum cosmology. Assuming that the dark energy has a constant bulk viscosity, it is found that the bulk viscosity effects influence only the quintessence model case leading to the existence of a viscous late time attractor solution of de-Sitter type, whereas the quantum geometry effects influence the phantom model case where the big rip singularity is removed. Moreover, our results of the Hubble parameter as a function of the redshift are in good agreement with the more recent data.
Received: 02 December 2015      Published: 31 May 2016
PACS:  95.85.-e (Astronomical observations (additional primary heading(s) must be chosen with these entries to represent the astronomical objects and/or properties studied))  
  04.60.Pp (Loop quantum gravity, quantum geometry, spin foams)  
  95.36.+x (Dark energy)  
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http://cpl.iphy.ac.cn/10.1088/0256-307X/33/5/059501       OR      http://cpl.iphy.ac.cn/Y2016/V33/I05/059501
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Sara Benchikh
Noureddine Mebarki
Dalel Aberkane
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