Modeling Time’s Arrow

Entropy

Vishnu Jejjala³  Michael Kavic¹  Djordje Minic² 

[1] Department of Physics, Long Island University, 1 University Plaza, Brooklyn, NY 11201, USA;Department of Physics, Virginia Tech, Blacksburg, VA 24061, USA; E-Mails:;National Institute for Theoretical Physics, School of Physics and Centre for Theoretical Physics, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa; E-Mail:

关键词: quantum gravity;    arrow of time;    non-equilibrium physics;   

DOI  :  10.3390/e14040614

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.