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The little rip

Paul H. Frampton1, Kevin J. Ludwick1, and Robert J. Scherrer2

  • 1Department of Physics & Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599, USA
  • 2Department of Physics & Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA

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Phys. Rev. D 84, 063003 – Published 6 September, 2011

DOI: https://doi.org/10.1103/PhysRevD.84.063003

Abstract

We examine models in which the dark energy density increases with time (so that the equation-of-state parameter w satisfies w<−1), but w→−1 asymptotically, such that there is no future singularity. We refine previous calculations to determine the conditions necessary to produce this evolution. Such models can display arbitrarily rapid expansion in the near future, leading to the destruction of all bound structures (a “little rip”). We determine observational constraints on these models and calculate the point at which the disintegration of bound structures occurs. For the same present-day value of w, a big rip with constant w disintegrates bound structures earlier than a little rip.

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References (26)

  1. R. A. Knop et al., Astrophys. J. 598, 102 (2003).
  2. A. G. Riess et al., Astrophys. J. 607, 665 (2004).
  3. E. J. Copeland, M. Sami, and S. Tsujikawa, Int. J. Mod. Phys. D 15, 1753 (2006).
  4. R. R. Caldwell, Phys. Lett. B 545, 23 (2002).
  5. R. R. Caldwell, M. Kamionkowski, and N. N. Weinberg, Phys. Rev. Lett. 91, 071301 (2003).
  6. P. H. Frampton and T. Takahashi, Phys. Lett. B 557, 135 (2003).
  7. S. Nesseris and L. Perivolaropoulos, Phys. Rev. D 70, 123529 (2004).
  8. R. J. Scherrer, Phys. Rev. D 71, 063519 (2005).
  9. S. Nojiri, S. D. Odintsov, and S. Tsujikawa, Phys. Rev. D 71, 063004 (2005); S. Nojiri and S. D. Odintsov, 72, 023003 (2005).
  10. H. Stefancic, Phys. Rev. D 71, 084024 (2005).
  11. J.-G. Hao and X.-Z. Li, Phys. Rev. D 70, 043529 (2004).
  12. M. Sami and A. Toporensky, Mod. Phys. Lett. A 19, 1509 (2004).
  13. V. Faraoni, Classical Quantum Gravity 22, 3235 (2005).
  14. J. Kujat, R. J. Scherrer, and A. A. Sen, Phys. Rev. D 74, 083501 (2006).
  15. J. D. Barrow, Classical Quantum Gravity 21, L79 (2004).
  16. J. D. Barrow, Classical Quantum Gravity 21, 5619 (2004).
  17. C. Cattoen and M. Visser, Classical Quantum Gravity 22, 4913 (2005).
  18. J. D. Barrow and S. Z. W. Lip, Phys. Rev. D 80, 043518 (2009).
  19. J. D. Barrow, Classical Quantum Gravity 13, 2965 (1996).
  20. R. Amanullah et al. (The Supernova Cosmology Project), Astrophys. J. 716, 712 (2010).
  21. E. Komatsu et al., Astrophys. J. Suppl. Ser. 192, 18 (2011).
  22. P. Serra, A. Cooray, D. E. Holz, A. Melchiorri, S. Pandolfi, and D. Sarkar, Phys. Rev. D 80, 121302 (2009).
  23. K. P. Schröder and R. C. Smith, Mon. Not. R. Astron. Soc. 386, 155 (2008).
  24. S. M. Carroll, M. Hoffmann, and M. Trodden, Phys. Rev. D 68, 023509 (2003); see also J. M. Cline, S. Jeon, and G. D. Moore, 70, 043543 (2004).
  25. L. Baum and P. H. Frampton, Phys. Rev. Lett. 98, 071301 (2007).
  26. P. H. Frampton, K. J. Ludwick, and R. J. Scherrer (unpublished).

Outline

Information

Phys. Rev. D 84, 063003– Published 6 September, 2011
  • Received 24 June 2011
Article part of CHORUS

© 2011 American Physical Society

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