• [1]

    J. Martin and R. H. Brandenberger, Phys. Rev. D, 63:123501(2001)

  • [2]

    V. M. Moukhanov, Physical Foundation Of Cosmology, (New York:Cambridge University Press, 2005)

  • [3]

    S. Weinberg, Cosmology, (New York:Cambridge University Press, 2008)

  • [4]

    A. H. Guth, Phys. Rev. D, 23:347(1981)

  • [5]

    D. H. Lyth and A. R. Liddle, The primordial density perturbation:cosmology, inflation and the origin of structure, (New York:Cambridge University Press, 2009)

  • [6]

    S. Dodelson, Modern Cosmology, (New York:Accademic press, 2003)

  • [7]

    M. Bridges et al, Mon. Not. Roy. Astron. Soc., 381:68(2007)

  • [8]

    Z. Guo et al, JCAP, 08:031(2011)

  • [9]

    C. R. Contaldi et al, JCAP, 07:002(2003)

  • [10]

    A. Iqbal, J. Prasad, T. Souradeep, and M. A. Malik, JCAP, 06:014(2015)

  • [11]

    Y. Cai et al, Phys. Rev. D, 92:023518(2015)

  • [12]

    B. A. Powell and W. H. Kinney, Phys. Rev. D, 76:063512(2007)

  • [13]

    R. Emami, H. Firouzjahi, and M. Zarei, Phys. Rev. D, 90:023504(2014)

  • [14]

    Y. Cai et al, JCAP, 08:020(2012)

  • [15]

    Z. Liu et al, Phys. Rev. D, 88:063539(2013)

  • [16]

    R. H. Brandenberger and J. Martin, arXiv:1211.6753

  • [17]

    B. Greene et al, Extracting New Physics from the CMB, in the proceedings of 22nd Texas Symposium on Relativistic Astrophysics at Stanford University, Dec.13-17(2004) 0001

  • [18]

    R. Kallosh and A. Linde, JCAP, 04:017(2007)

  • [19]

    Y. Cai et al, Phys. Rev. D, 92:121303(2015)

  • [20]

    T. S. Bunch and P. C. W. Davies, Proc. Roy. Soc. Lond. A, 360:117(1978)

  • [21]

    R. Holman and A. J. Tolley, JCAP, 05:001(2008)

  • [22]

    A. Ashoorioon and G. Shiu, JCAP, 03:025(2011)

  • [23]

    S. Kundu, JCAP, 02:005(2012)

  • [24]

    A. Ashoorioon et al, JCAP, 02:025(2014)

  • [25]

    P. A. R. Ade et al, arXiv:1502.02114

  • [26]

    M. Mohsenzadeh et al, Eur. Phys. J. C, 74:2920(2014)

  • [27]

    E. Yusofi and M. Mohsenzadeh, JHEP, 09:020(2014) arXiv:1402.6968

  • [28]

    E. Yusofi and M. Mohsenzadeh, Mod. Phys. Lett. A, 30:1550041(2015)

  • [29]

    E. Yusofi and M. Mohsenzadeh, Phys. Lett. B, 735:261(2014)

  • [30]

    M. Mohsenzadeh and E. Yusofi, Chinese Physics C, 41(8):085101(2017)

  • [31]

    A. Sojasi et al, Chinese Physics C, 40(7):075101(2016)

  • [32]

    E. Yusofi and M. Mohsenzadeh, DOI.10.1007/s10773-018-3689-3, arXiv:1506.02767

  • [33]

    L. Bergstrom and U. H. Danielsson, JHEP, 0212:038(2002)

  • [34]

    U. H. Danielsson, Phys. Rev. D, 66:023511(2002) hep-th/0203198

  • [35]

    A. Lewis, A. Challinor, and A. Lasenby, Astrophys. J., 538:473(2000)

  • [36]

    A. Lewis and S. Bridle, Phys. Rev. D, 66:103511(2002)

  • [37]

    M. Trashorras, S. Nesseris, and J. Garcia-Bellido, Phys. Rev. D, 94:063511(2016)