[552] M. S. Bremer, M. J. Duff, H. Lu, C. N. Pope, and K. S. Stelle, Nucl. Phys. B543 , 321 (1999), hep-th/9807051. [553] J. Silk and M. S. Turner, Phys. Rev. D35 , 419 (1987). [554] F. C. Adams and K. Freese, Phys. Rev. D43 , 353 (1991), hep-ph/0504135. [555] R. Holman, E. W. Kolb, S. L. Vadas, and Y. Wang, Phys. Lett. B269 , 252 (1991). [556] D. Polarski and A. A. Starobinsky, Nucl. Phys. B385 , 623 (1992). [557] R. Easther and L. McAllister, JCAP 0605 , 018 (2006), hep-th/0512102. [558] A. Mazumdar, S. Panda, and A. Perez-Lorenzana, Nucl. Phys. B614 , 101 (2001), hep- ph/0107058. [559] J. M. Cline and H. Stoica, Phys. Rev. D72 , 126004 (2005), hep-th/0508029. [560] K. Becker, M. Becker, and A. Krause, Nucl. Phys. B715 , 349 (2005), hep-th/0501130. [561] Y.-S. Piao, R.-G. Cai, X.-m. Zhang, and Y.-Z. Zhang, Phys. Rev. D66 , 121301 (2002), hep-ph/0207143. [562] R. Allahverdi, A. Mazumdar, and T. Multamaki (2007), 0712.2031. [563] B. A. Bassett, S. Tsujikawa, and D. Wands, Rev. Mod. Phys. 78 , 537 (2006), astro- ph/0507632. [564] F. Bernardeau and J.-P. Uzan, Phys. Rev. D66 , 103506 (2002), hep-ph/0207295. [565] F. Bernardeau and J.-P. Uzan, Phys. Rev. D67 , 121301 (2003), astro-ph/0209330. [566] L. Alabidi, JCAP 0610 , 015 (2006), astro-ph/0604611. [567] M. Sasaki, Prog. Theor. Phys. 120 , 159 (2008), 0805.0974. [568] A. Naruko and M. Sasaki, Prog. Theor. Phys. 121 , 193 (2009), 0807.0180. [569] C. T. Byrnes, K.-Y. Choi, and L. M. H. Hall, JCAP 0902 , 017 (2009), 0812.0807. [570] N. Barnaby and J. M. Cline, Phys. Rev. D73 , 106012 (2006), astro-ph/0601481. [571] L. Alabidi and D. Lyth, JCAP 0608 , 006 (2006), astro-ph/0604569. [572] Q.-G. Huang, JCAP 0905 , 005 (2009), 0903.1542. [573] Y.-S. Piao, Phys. Rev. D74 , 047302 (2006), gr-qc/0606034. [574] S. A. Kim and A. R. Liddle, Phys. Rev. D74 , 063522 (2006), astro-ph/0608186. [575] F. Vernizzi and D. Wands, JCAP 0605 , 019 (2006), astro-ph/0603799. [576] Y.-F. Cai and H.-Y. Xia, Phys. Lett. B677 , 226 (2009), 0904.0062. [577] Y.-F. Cai and W. Xue, Phys. Lett. B680 , 395 (2009), 0809.4134. [578] N. Barnaby and J. M. Cline, Phys. Rev. D75 , 086004 (2007), astro-ph/0611750. 262