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arXiv · 1205.3140

What can the information paradox tell us about the early Universe?

Samir D. Mathur
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Abstract

In recent years we have come to understand how the information paradox is resolved in string theory. The huge entropy $S_{bek}={A\over 4G}$ of black holes is realized by an explicit set of horizon sized `fuzzball' wavefunctions. The wavefunction of a collapsing shell spreads relatively quickly over this large phase space of states, invalidating the classical black hole geometry the shell would have created. We argue that a related effect may occur in the early Universe. When matter is crushed to high densities we can access a similarly large phase space of gravitational `fuzzball' solutions. While we cannot estimate specific quantities at this point, a qualitative analysis suggests that spreading over phase space creates an extra `push' expanding the Universe to larger volumes.

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Samir D. Mathur. 2012-05-14. What can the information paradox tell us about the early Universe?. https://doi.org/10.1142/s0218271812410027

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