Chin. Phys. Lett.  2015, Vol. 32 Issue (10): 109501    DOI: 10.1088/0256-307X/32/10/109501
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
Quintessence Cosmology with an Effective Λ-Term in Lyra Manifold
Khurshudyan M.1**, Pasqua A.2, Sadeghi J.3, Farahani H.3**
1Chair of Theoretical Physics and Physics Teaching Methods, Armenian State Pedagogical University, Yerevan 375010, Republic of Armenia
2Department of Physics, University of Trieste, Trieste 234127, Italy
3Department of Physics, University of Mazandaran, Babolsar 47416-95447, Iran
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Khurshudyan M., Pasqua A., Sadeghi J. et al  2015 Chin. Phys. Lett. 32 109501
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Abstract We study quintessence cosmology with an effective Λ-term in Lyra manifold. We consider three different models by choosing variable Λ depending on time, the Hubble parameter and the energy density of dark matter and dark energy. Dark energy is assumed as quintessence which interacts with the dark matter. Using numerical analysis we investigate the behavior of cosmological parameters in three different models and compare our results with observational data. State-finder diagnostic is also performed for all models.
Received: 23 May 2015      Published: 30 October 2015
PACS:  95.35.+d (Dark matter)  
  95.85.-e (Astronomical observations (additional primary heading(s) must be chosen with these entries to represent the astronomical objects and/or properties studied))  
  98.80.-k (Cosmology)  
  95.30.Cq (Elementary particle processes)  
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http://cpl.iphy.ac.cn/10.1088/0256-307X/32/10/109501       OR      http://cpl.iphy.ac.cn/Y2015/V32/I10/109501
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Khurshudyan M.
Pasqua A.
Sadeghi J.
Farahani H.
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