Browsing 08. Факультеты by Subject "dark energy"

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Browsing 08. Факультеты by Subject "dark energy"

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  • Kazuharu Bamba; Olga Razina; Koblandy Yerzhanov; Ratbay Myrzakulov (2013-05-15)
    We explore the cosmological evolution of equation of state (EoS) for dark energy in g-essence models, the action of which is described by a function of both the canonical kinetic term of both the scalar and fermionic fields. ...
  • Vladimir Dzhunushaliev; Kairat Myrzakulov; Ratbay Myrzakulov (2013-06-13)
    The model of dark matter is presented where the dark matter is a classical gauge field. A spherical symmetric solution of Yang – Mills equation is obtained. The asymptotic behavior of the gauge fields and matter density ...
  • Kazuharu Bamba; Olga Razina; Koblandy Yerzhanov; Ratbay Myrzakulov (2013-06-19)
    We explore the cosmological evolution of equation of state (EoS) for dark energy in g-essence models, the action of which is described by a function of both the canonical kinetic term of both the scalar and fermionic fields. ...
  • Kazuharu Bamba; Olga Razina; Koblandy Yerzhanov; Ratbay Myrzakulov (2013-04-18)
    We explore the cosmological evolution of equation of state (EoS) for dark energy in g-essence models, the action of which is described by a function of both the canonical kinetic term of both the scalar and fermionic ...
  • Ratbay Myrzakulov (2013-04-19)
    This a brief review on F (T ) gravity and its relation with k-essence. Modified teleparallel gravity theory with the torsion scalar has recently gained a lot of attention as a possible explanation of dark energy. We ...
  • D Momeni; Y Myrzakulov; P Tsyba; K Yesmakhanova; R Myrzakulov (2013-04-19)
    In the present work, we study the cosmological model with fermionic field and with the non-canonical kinetic term (f-essence). We present some important reductions of the model as well as some of its generalizations. We ...
  • Olga Razina; Yerlan Myrzakulov; Nurzhan Serikbayev; Shynaray Myrzakul; Gulgasyl Nugmanova; Ratbay Myrzakulov (2013-06-12)
    We study the two particular models of g-essence with Yukawa type interactions between a scalar field and a classical Dirac field . For the homogeneous, isotropic and flat Friedmann-Robertson-Walker universe filled with ...
  • Kazuharu Bamba; Ujjal Debnath; Kuralay Yesmakhanova; Petr Tsyba; Gulgasyl Nugmanova; Ratbay Myrzakulov (2013-06-21)
    We demonstrate two periodic or quasi-periodic generalizations of the Chaplygin gas (CG) type models to explain the origins of dark energy as well as dark matter by using the Weierstrass }(t), (t) and (t) functions with ...
  • Kazuharu Bamba; Ujjal Debnath; Kuralay Yesmakhanova; Petr Tsyba; Gulgasyl Nugmanova; Ratbay Myrzakulov (2013-06-21)
    We demonstrate two periodic or quasi-periodic generalizations of the Chaplygin gas (CG) type models to explain the origins of dark energy as well as dark matter by using the Weierstrass }(t), (t) and (t) functions with ...
  • Kazuharu Bamba; Ujjal Debnath; Kuralay Yesmakhanova; Petr Tsyba; Gulgasyl Nugmanova; Ratbay Myrzakulov (2013-04-19)
    We demonstrate two periodic or quasi-periodic generalizations of the Chaplygin gas (CG) type models to explain the origins of dark energy as well as dark matter by using the Weierstrass }(t), (t) and (t) functions ...
  • Mubasher Jamil; Kuralay Yesmakhanova; Davood Momeni; Ratbay Myrzakulov (2013-04-19)
    In this paper, we examine the interacting dark energy model in f(T ) cosmology. We assume dark energy as a perfect fluid and choose a specific cosmologically viable form f(T ) = p T . We show that there is one attractor ...
  • Mubasher Jamil1; Kuralay Yesmakhanova; Davood Momeni; Ratbay Myrzakulov (2013-04-22)
    In this paper, we examine the interacting dark energy model in f(T ) cosmology. We assume dark energy as a perfect fluid and choose a specific cosmologically viable form f(T ) = p T . We show that there is one attractor ...
  • P.Tsyba; K.Yerzhanov; K.Esmakhanova; I.Kulnazarov; G.Nugmanova; R.Myrzakulov (2013-05-15)
    Recently, it was proposed a new fermionic model of dark energy, the so-called f-essence. In this work, we first present fermionic Chaplygin gas models of dark energy corresponding to the usual Einstein-Dirac theory. Then ...
  • M. Sharif; K. Yesmakhanova; S. Rani; R. Myrzakulov (2013-04-22)
    This paper is devoted to the investigation of the modified Chaplygin gas model in the context of solvable kessence cosmologies. For this purpose, we construct equations of state parameter of this model for some ...

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