Abstract
I previously argued that the origin of time asymmetry is to be sought in the processes that characterized the very early cosmological epochs, and that the recent inflationary scenario provides a crucial element in our understanding of this origin1. Here, I develop this thesis further, in the light of criticisms by Page2. I argue in particular that any of the “initial states” that appear to be permitted by quantum gravity, if succeeded by a period of inflation, would have wound up the universe to the state from which, as indicated by increasing entropy, it is now winding down.
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References
Davies, P. C. W. Nature 301, 398–400 (1983).
Page, D. N. Nature 304, 39 (1983); Int. J. theor. Phys. 23, 1–8 (1984).
Davies, P. C. W. The Physics of Time Asymmetry (Surrey University Press 1974); The Runaway Universe (Dent, London, 1978).
Boltzmann, L. Lectures on Gas Theory, 1896–1898 (English translation by S. G. Bush; University of California Press, 1964).
R., Penrose in General Relativity: an Einstein Centenary Survey (eds Hawking, S. W. & Israel, W.) (Cambridge University Press, 1979).
Guth, A. H. Phys. Rev. D23, 347–356 (1981).
Gibbons, G. W., Hawking, S. W. & Siklos, S. T. C. (eds) The Very Early Universe 205–266, 287–310 (Cambridge University Press, 1983).
W., Boucher & G. W., Gibbons in The Very Early Universe (eds Gibbons, G. W., Hawking, S. W. & Siklos, S. T. C.) 273–278 (Cambridge University Press, 1983).
Reichenbach, H. The Direction of Time (University of California Press, 1956).
G. W., Gibbons & Hawking, S. W. Phys. Rev. D15, 2752 (1977).
Barrow, J. D. & Turner, M. Nature 298, 801–805 (1984).
Linde, A. D. in The Very Early Universe (eds Gibbons, G. W., Hawking, S. W. & Siklos, S. T. C.) 205–250 (Cambridge University Press, 1983).
Vilenkin, A. Phys. Lett. 117B, 25–29 (1982).
Moss, I. G. & Wright, W. A. Preprint, Univ. Newcastle (1984).
Hawking, S. W. in Astrophysical Cosmology: Proceedings of the Study Week on Cosmology and Fundamental Physics (eds Bruck, H. A., Coyne, G. V. & Longair, M. S. (Pontifica Academia Scientiarum, Vatican 1982).
Hartle, J. B. & Hawking, S. W. Phys. Rev. D 28, 2980–2075 (1983).
Hawking, S. W. & Luttrell, J. C., Preprint, Univ. Cambridge (1984).
Hawking, S. W. Phys. Rev. D 14, 2460–2473 (1976).
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Davies, P. Inflation in the universe and time asymmetry. Nature 312, 524–527 (1984). https://doi.org/10.1038/312524a0
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DOI: https://doi.org/10.1038/312524a0
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