Comparing potential-driven DBI-inspired non-minimal kinetic coupling (Dinkic) inflation with observational data

  • In our previous work[1], a new kind of inflation model was proposed, which has the interesting property that its perturbation equation of motion gets a correction of k4, due to the non-linearity of the kinetic term. Nonetheless, the scale-invariance of the power spectrum remains valid, both in large-k and small-k limits. In this paper, we investigate in detail the spectral index, the index running and the tensor/scalar ratio in this model, especially in the potential-driven case, and compare the results with the current PLANCK/BICEP observational data. We also discuss the tensor spectrum in this case, which is expected to be tested by future observations of primordial gravitational waves.
      PCAS:
  • 加载中
  • [1] T. Qiu, Phys. Rev. D, 93 (12):123515 (2016)
    [2] G. W. Horndeski, Int. J. Theor. Phys., 10:363 (1974)
    [3] A. Nicolis, R. Rattazzi, and E. Trincherini, Phys. Rev. D, 79:064036 (2009)
    [4] C. Deffayet, S. Deser, and G. Esposito-Farese, Phys. Rev. D, 80:064015 (2009)[arXiv:0906.1967[gr-qc]]; C. Deffayet, X. Gao, D. A. Steer, and G. Zahariade, Phys. Rev. D, 84:064039 (2011)
    [5] S. A. Appleby, A. De Felice, and E. V. Linder, JCAP, 1210:060 (2012)
    [6] J. Gleyzes, D. Langlois, F. Piazza, and F. Vernizzi, Phys. Rev. Lett., 114 (21):211101 (2015); X. Gao, Phys. Rev. D, 90:081501 (2014)
    [7] S. Ohashi, N. Tanahashi, T. Kobayashi, and M. Yamaguchi, JHEP, 1507:008 (2015)
    [8] D. Langlois and K. Noui, JCAP, 1602 (02):034 (2016)[arXiv:1510.06930[gr-qc]]; J. Ben Achour, D. Langlois, and K. Noui, Phys. Rev. D, 93 (12):124005 (2016)
    [9] P. A. R. Ade et al (Planck Collaboration), Astron. Astrophys., 571:A22 (2014)
    [10] P. A. R. Ade et al (Planck Collaboration), Astron. Astrophys., 594:A20 (2016)
    [11] M. Zaldarriaga and U. Seljak, Phys. Rev. D, 55:1830 (1997)
    [12] B. P. Abbott et al (LIGO Scientific and Virgo Collaborations), Phys. Rev. Lett., 116 (6):061102 (2016)
    [13] P. Amaro-Seoane et al, GW Notes, 6:4 (2013)[arXiv:1201.3621[astro-ph.CO]].
    [14] J. Luo et al (TianQin Collaboration), Class. Quant. Grav., 33 (3):035010 (2016)
    [15] H. Li et al, arXiv:1710.03047[astro-ph.CO]
    [16] A. D. Linde, Phys. Lett. B, 129:177 (1983)
    [17] K. Freese, J. A. Frieman, and A. V. Olinto, Phys. Rev. Lett., 65:3233 (1990)
    [18] A. Albrecht and P. J. Steinhardt, Phys. Rev. Lett., 48:1220 (1982)
    [19] A. Albrecht and R. H. Brandenberger, Phys. Rev. D, 31:1225 (1985)
    [20] E. Silverstein and A. Westphal, Phys. Rev. D, 78:106003 (2008)
    [21] J. Martin, C. Ringeval, and V. Vennin, Phys. Dark Univ., 5-6:75 (2014)[arXiv:1303.3787[astro-ph.CO]].
    [22] N. Yang, Q. Fei, Q. Gao, and Y. Gong, Class. Quant. Grav., 33:no. 20, 205001 (2016)
    [23] R. L. Arnowitt, S. Deser, and C. W. Misner, Gen. Rel. Grav., 40:1997 (2008)
    [24] Y. F. Cai and X. Zhang, Phys. Rev. D, 80:043520 (2009)
    [25] Y. Lu and Y. S. Piao, Int. J. Mod. Phys. D, 19:1905 (2010)
    [26] R. Brandenberger, Int. J. Mod. Phys. D, 26 (01):1740002 (2016)
    [27] P. A. R. Ade et al (BICEP2 and Keck Array Collaborations), Phys. Rev. Lett., 116:031302 (2016)
    [28] D. H. Lyth, Phys. Rev. Lett., 78:1861 (1997)
    [29] G. Efstathiou and K. J. Mack, JCAP, 0505:008 (2005)
    [30] I. Ben-Dayan and R. Brustein, JCAP, 1009:007 (2010)
    [31] S. Choudhury and A. Mazumdar, Nucl. Phys. B, 882:386 (2014)
    [32] S. Antusch and D. Nolde, JCAP, 1405:035 (2014)
    [33] S. Choudhury and A. Mazumdar, arXiv:1404.3398[hep-th]
    [34] G. German, arXiv:1405.3246[astro-ph.CO]
    [35] Q. Gao, Y. Gong, and T. Li, Phys. Rev. D, 91:063509 (2015)
    [36] M. W. Hossain, R. Myrzakulov, M. Sami, and E. N. Saridakis, Phys. Lett. B, 737:191 (2014)
    [37] X. Chen, Phys. Rev. D, 71:063506 (2005); X. Chen, JHEP, 0508:045 (2005)
    [38] F. L. Bezrukov and M. Shaposhnikov, Phys. Lett. B, 659:703 (2008)
  • 加载中

Get Citation
Jun Chen, Wenjie Hou, Taotao Qiu and Defu Hou. Comparing potential-driven DBI-inspired non-minimal kinetic coupling (Dinkic) inflation with observational data[J]. Chinese Physics C, 2018, 42(4): 045102. doi: 10.1088/1674-1137/42/4/045102
Jun Chen, Wenjie Hou, Taotao Qiu and Defu Hou. Comparing potential-driven DBI-inspired non-minimal kinetic coupling (Dinkic) inflation with observational data[J]. Chinese Physics C, 2018, 42(4): 045102.  doi: 10.1088/1674-1137/42/4/045102 shu
Milestone
Received: 2017-11-24
Revised: 2018-01-24
Fund

    Supported by NSFC (11405069, 11653002, 11735007, 111375070)

Article Metric

Article Views(1273)
PDF Downloads(23)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Comparing potential-driven DBI-inspired non-minimal kinetic coupling (Dinkic) inflation with observational data

    Corresponding author: Jun Chen,
    Corresponding author: Wenjie Hou,
    Corresponding author: Taotao Qiu,
    Corresponding author: Defu Hou,
  • 1. Key Laboratory of Quark and Lepton Physics(MOE), Central China Normal University, Wuhan 430079, China
  • 2. Institute of Particle Physics, Central China Normal University, Wuhan 430079, China
  • 3. Institute of Astrophysics, Central China Normal University, Wuhan 430079, China
  • 4. Institute of Astrophysics, Central China Normal University, Wuhan 430079, China
Fund Project:  Supported by NSFC (11405069, 11653002, 11735007, 111375070)

Abstract: In our previous work[1], a new kind of inflation model was proposed, which has the interesting property that its perturbation equation of motion gets a correction of k4, due to the non-linearity of the kinetic term. Nonetheless, the scale-invariance of the power spectrum remains valid, both in large-k and small-k limits. In this paper, we investigate in detail the spectral index, the index running and the tensor/scalar ratio in this model, especially in the potential-driven case, and compare the results with the current PLANCK/BICEP observational data. We also discuss the tensor spectrum in this case, which is expected to be tested by future observations of primordial gravitational waves.

    HTML

Reference (38)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return