Modeling Time's Arrow

Details Modeling Time's Arrow Modeling Time's Arrow

2012-03-20

arxiv.org/abs/1203.4575v1

Entropy 2012, 14, 614-629

Physics

High Energy Physics

High Energy Physics - Theory

18 pages

Scientific paper

Quantum gravity, the initial low entropy state of the Universe, and the problem of time are interlocking puzzles. In this article, we address the origin of the arrow of time from a cosmological perspective motivated by a novel approach to quantum gravitation. Our proposal is based on a quantum counterpart of the equivalence principle, a general covariance of the dynamical phase space. We discuss how the nonlinear dynamics of such a system provides a natural description for cosmological evolution in the early Universe. We also underscore connections between the proposed non-perturbative quantum gravity model and fundamental questions in non-equilibrium statistical physics.

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