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Просмотр по теме "dark energy theory"

Просмотр по теме "dark energy theory"

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  • Anisotropic deformations of spatially open cosmology in massive gravity theory 
    Mazuet C.; Mukohyama S.; Volkov M. (2017)
    © 2017 IOP Publishing Ltd and Sissa Medialab srl .We combine analytical and numerical methods to study anisotropic deformations of the spatially open homogeneous and isotropic cosmology in the ghost free massive gravity ...
  • Bouncing universes in scalar-tensor gravity models admitting negative potentials 
    Boisseau B.; Giacomini H.; Polarski D.; Starobinsky A. (2015)
    © 2015 IOP Publishing Ltd and Sissa Medialab srl . We consider the possibility to produce a bouncing universe in the framework of scalar-tensor gravity models in which the scalar field potential may be negative, and even ...
  • Cosmology with nonminimal kinetic coupling and a Higgs-like potential 
    Matsumoto J.; Sushkov S. (2015)
    © 2015 IOP Publishing Ltd and Sissa Medialab srl. We consider cosmological dynamics in the theory of gravity with the scalar field possessing the nonminimal kinetic coupling to curvature given as κGμνφ,μφ,ν, and the ...
  • General dynamical properties of cosmological models with nonminimal kinetic coupling 
    Неизвестный автор (2018)
    © 2018 IOP Publishing Ltd and Sissa Medialab. We consider cosmological dynamics in the theory of gravity with the scalar field possessing the nonminimal kinetic coupling to curvature given as η Gμνφ,μφ,ν, where η is an ...
  • Giant wormholes in ghost-free bigravity theory 
    Sushkov S.; Volkov M. (2015)
    We study Lorentzian wormholes in the ghost-free bigravity theory described by two metrics, g and f. Wormholes can exist if only the null energy condition is violated, which happens naturally in the bigravity theory since ...
  • Oscillating solutions of the matter density contrast in Horndeski's theory 
    Matsumoto J. (2019)
    © 2019 IOP Publishing Ltd and Sissa Medialab. Evolution of the large scale structure of the Universe is described by galaxy bias and the growth rate function of the matter density contrast. The behavior of the growth rate ...
  • Statefinder analysis of the superfluid Chaplygin gas model 
    Popov V. (2011)
    The statefinder indices are employed to test the superfluid Chaplygin gas (SCG) model describing the dark sector of the universe. The model involves Bose-Einstein condensate (BEC) as dark energy (DE) and an excited state ...
  • The Ogievetsky-Polubarinov massive gravity and the benign Boulware-Deser mode 
    Mukohyama S.; Volkov M. (2018)
    © 2018 IOP Publishing Ltd and Sissa Medialab. We present our analysis of the theory constructed in 1965 by Ogievetsky and Polubarinov (OP) - the first ever theory of interacting massive gravitons. Its mass term is adjusted ...
  • The screening Horndeski cosmologies 
    Starobinsky A.; Sushkov S.; Volkov M. (2016)
    We present a systematic analysis of homogeneous and isotropic cosmologies in a particular Horndeski model with Galileon shift symmetry, containing also a Λ-term and a matter. The model, sometimes called Fab Five, admits a ...

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