[579] J. R. Bond, A. V. Frolov, Z. Huang, and L. Kofman, Phys. Rev. Lett. 103 , 071301 (2009), 0903.3407. [580] D. Mulryne, D. Seery, and D. Wesley (2009), 0911.3550. [581] F. C. Adams, J. R. Bond, K. Freese, J. A. Frieman, and A. V. Olinto, Phys. Rev. D47 , 426 (1993), hep-ph/9207245. [582] D. E. Kaplan and N. J. Weiner, JCAP 0402 , 005 (2004), hep-ph/0302014. [583] N. Arkani-Hamed, A. G. Cohen, and H. Georgi, Phys. Lett. B513 , 232 (2001), hep- ph/0105239. [584] N. Arkani-Hamed, H.-C. Cheng, P. Creminelli, and L. Randall, Phys. Rev. Lett. 90 , 221302 (2003), hep-th/0301218. [585] N. Arkani-Hamed, H.-C. Cheng, P. Creminelli, and L. Randall, JCAP 0307 , 003 (2003), hep-th/0302034. [586] D. S. Salopek, J. R. Bond, and J. M. Bardeen, Phys. Rev. D40 , 1753 (1989). [587] F. L. Bezrukov, A. Magnin, and M. Shaposhnikov (2008), 0812.4950. [588] A. O. Barvinsky, A. Y. Kamenshchik, and A. A. Starobinsky, JCAP 0811 , 021 (2008), 0809.2104. [589] A. De Simone, M. P. Hertzberg, and F. Wilczek, Phys. Lett. B678 , 1 (2009), 0812.4946. [590] J. L. F. Barbon and J. R. Espinosa (2009), 0903.0355. [591] A. Zee, Phys. Rev. Lett. 42 , 417 (1979). [592] L. Smolin, Phys. Lett. B93 , 95 (1980). [593] D. La and P. J. Steinhardt, Phys. Rev. Lett. 62 , 376 (1989). [594] J. D. Barrow and K.-i. Maeda, Nucl. Phys. B341 , 294 (1990). [595] J. D. Barrow, Phys. Rev. D47 , 5329 (1993). [596] P. Parsons and J. D. Barrow, Phys. Rev. D51 , 6757 (1995), astro-ph/9501086. [597] J. Garcia-Bellido and A. D. Linde, Phys. Rev. D52 , 6730 (1995), gr-qc/9504022. [598] A. L. Berkin, K.-i. Maeda, and J. Yokoyama, Phys. Rev. Lett. 65 , 141 (1990). [599] A. L. Berkin and K.-I. Maeda, Phys. Rev. D44 , 1691 (1991). [600] R. Holman, E. W. Kolb, S. L. Vadas, and Y. Wang, Phys. Rev. D43 , 995 (1991). [601] R. Holman, E. W. Kolb, and Y. Wang, Phys. Rev. Lett. 65 , 17 (1990). [602] F. Di Marco and A. Notari, Phys. Rev. D73 , 063514 (2006), astro-ph/0511396. [603] D. La and P. J. Steinhardt, Phys. Lett. B220 , 375 (1989). 263