Evidence for the quantum birth of our universe |
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| Authors: | CS Unnikrishnan GT Gillies RC Ritter |
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| Institution: | (1) Gravitation Group, Tata Institute of Fundamental Research, Homi Bhabha Road, 400 005 Mumbai, India;(2) NAPP Group, Indian Institute of Astrophysics, Koramangala, 560 034 Bangalore, India;(3) School of Engineering and Applied Science, University of Virginia, 22904-4746 Charlottesville, VA, USA;(4) Department of Physics, University of Virginia, P.O. Box 400714, 22904-4714 Charlottesville, Virginia, USA |
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| Abstract: | We present evidence for a nonsingular origin of the Universe with intial conditions determined by quantum physics and relativistic
gravity. In particular, we establish that the present temperature of the microwave background and the present density of the
Universe agree well with our predictions from these intial conditions, after evolution to the present age using the Einstein-Friedmann
equation. Remarkably, the quantum origin for the Universe naturally allows its evolution at exactly the critical density.
We also discuss the consequences of these results to some fundamental aspects of quantum physics in the early Universe. |
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| Keywords: | Cosmological parameters quantum cosmology uncertainty principle fundamental constants gravity |
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