@article{oai:nagoya.repo.nii.ac.jp:00009533,
 author = {Taruya, Atsushi and Koyama, Kazuya and Matsubara, Takahiko},
 issue = {12},
 journal = {PHYSICAL REVIEW D},
 month = {Dec},
 note = {Employing the perturbative treatment of gravitational clustering, we discuss possible effects of primordial non-Gaussianity on the matter power spectrum. As gravitational clustering develops, the coupling between different Fourier modes of density perturbations becomes important and the primordial non-Gaussianity which intrinsically possesses a nontrivial mode correlation can affect the late-time evolution of the power spectrum. We quantitatively estimate the non-Gaussian effect on the power spectrum from the perturbation theory. The potential impact on the cosmological parameter estimation using the power spectrum are investigated based on the Fisher-matrix formalism. In addition, on the basis of the local biasing prescription, non-Gaussian effects on the galaxy power spectrum are considered, showing that the scale-dependent biasing arises from a local-type primordial non-Gaussianity. On the other hand, an equilateral-type non-Gaussianity does not induce such scale dependence because of weaker mode correlations between small and large Fourier modes.},
 pages = {123534--123534},
 title = {Signature of primordial non-Gaussianity on the matter power spectrum},
 volume = {78},
 year = {2008}
}