publication . Preprint . Article . 2010

New mechanism to cross the phantom divide

Xin-Zhou Li; Hongsheng Zhang; Yunshuang Du;
Open Access English
  • Published: 25 Aug 2010
Abstract
Recently, type Ia supernovae data appear to support a dark energy whose equation of state $w$ crosses -1, which is a much more amazing problem than the acceleration of the universe. We show that it is possible for the equation of state to cross the phantom divide by a scalar field in the gravity with an additional inverse power-law term of Ricci scalar in the Lagrangian. The necessary and sufficient condition for a universe in which the dark energy can cross the phantom divide is obtained. Some analytical solutions with $w<-1$ or $w>-1$ are obtained. A minimal coupled scalar with different potentials, including quadratic, cubic, quantic, exponential and logarith...
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doi: 10.1140/epjc/s10052-011-1660-z
Subjects
free text keywords: Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, High Energy Physics - Theory, Physics and Astronomy (miscellaneous), Engineering (miscellaneous), Scalar–tensor theory, Classical mechanics, Scalar field, Dark energy, Equation of state, Scalar (physics), Scalar curvature, Friedmann equations, symbols.namesake, symbols, Universe, media_common.quotation_subject, media_common, Mathematical physics, Physics
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19 references, page 1 of 2

[1] A. G. Riess et al., Astron. J. 116, 1009 (1998), astro-ph/9805201; S. Perlmutter et al., Astrophys. J. 517, 565 (1999), astro-ph/9812133.

[2] E. J. Copeland, M. Sami and S. Tsujikawa, Int. J. Mod. Phys. D 15, 1753 (2006) [arXiv:hep-th/0603057].

[3] S. M. Carroll, V. Duvvuri, M. Trodden and M. S. Turner, Phys. Rev. D 70 (2004) 043528 [arXiv:astro-ph/0306438].

[4] S. Nojiri and S. D. Odintsov, eConf C0602061, 06 (2006) [Int. J. Geom. Meth. Mod. Phys. 4, 115 (2007)] [arXiv:hep-th/0601213]; M. C. B. Abdalla, S. Nojiri and S. D. Odintsov, Class. Quant. Grav. 22, L35 (2005) [arXiv:hep-th/0409177];S. Nojiri and S. D. Odintsov, Phys. Rev. D 74, 086005 (2006) [arXiv:hep-th/0608008]; S. Nojiri and S. D. Odintsov, J. Phys. Conf. Ser. 66, 012005 (2007) [arXiv:hep-th/0611071]; S. Nojiri and S. D. Odintsov, Phys. Rev. D 78, 046006 (2008) [arXiv:0804.3519 [hep-th]] ;K. Bamba, S. Nojiri and S. D. Odintsov, JCAP 0810, 045 (2008) [arXiv:0807.2575 [hep-th]] ; K. Bamba, C. Q. Geng, S. Nojiri and S. D. Odintsov, Phys. Rev. D 79, 083014 (2009) [arXiv:0810.4296 [hep-th]].

[5] S. Nojiri and S. D. Odintsov, arXiv:1011.0544 [gr-qc].

[6] A. Starobinsky, Phys. Lett. B 91, 99 (1980).

[7] T. Chiba, Phys. Lett. B 575, 1 (2003) [arXiv:astro-ph/0307338].

[8] S. Capozziello, S. Nojiri and S. D. Odintsov, Phys. Lett. B 634 (2006) 93 [arXiv:hep-th/0512118]; S. Capozziello, S. Nojiri, S. D. Odintsov and A. Troisi, arXiv:astro-ph/0604431.

[9] S. Nojiri and S. D. Odintsov, Phys. Rev. D 68, 123512 (2003) [arXiv:hep-th/0307288]; S. Nojiri and S. D. Odintsov, Gen. Rel. Grav. 36, 1765 (2004) [arXiv:hep-th/0308176].

[10] H Zhang, Crossing the phantom divide, to appear in Dark Energy : T heories, Developments and Implications, Nova Science Publisher, 2010.

[11] J. G. Hao and X. Z. Li, Phys. Rev. D 70, 043529 (2004) [arXiv:astro-ph/0309746].

[12] X. Z. Li and J. G. Hao, Phys. Rev. D 68 (2003) 083512 [arXiv:astro-ph/0308288].

[13] J. G. Hao and X. Z. Li, Phys. Rev. D 68, 043501 (2003) [arXiv:hep-th/0305207].

[14] R. R. Caldwell, Phys. Lett. B 545 (2002) 23 [arXiv:astro-ph/9908168];J. G. Hao and X. Z. Li, Phys. Rev. D 67, 107303 (2003) [arXiv:gr-qc/0302100]; R. R. Caldwell, M. Kamionkowski and N. N. Weinberg, Phys. Rev. Lett. 91, 071301 (2003) [arXiv:astro-ph/0302506];S. Nojiri and S. D. Odintsov, Phys. Lett. B 562, 147 (2003) [arXiv:hep-th/0303117]; E. Elizalde, S. Nojiri and S. D. Odintsov, Phys. Rev. D 70, 043539 (2004) [arXiv:hep-th/0405034].

[15] S. M. Carroll, M. Hoffman and M. Trodden, Phys. Rev. D 68, 023509 (2003) [arXiv:astro-ph/0301273]; E. O. Kahya and V. K. Onemli, Phys. Rev. D 76, 043512 (2007) [arXiv:gr-qc/0612026]; Hongsheng Zhang and Zong-Hong Zhu, JCAP03(2008)007.

19 references, page 1 of 2
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