Tsujikawa, Phys. Rev. D 77, 023507 (2008)
Tsujikawa, Phys. Rev. D 77, 023507 (2008)
Tsujikawa, Phys. Rev. D 77, 023507 (2008)
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・We estimate the present valueof w eff .For case ,*No. 33We regard at the presenttime because the energy density of darkenergy is dominant over that of nonrelativisticmatter at the present time.: The present time has the dimension of: Current value of H, [Freedman et al. [HST Collaboration],Astrophys. J. 553, 47 (2001)]・0 < q < 1For ,.・For à 1 < q < 0 , w eff > 0 .w effw DEIn our models, canhave the presentobserved value of .