On Cosmic Acceleration with Evolving Dark Matter: A Quantum Gravity Approach

Abstract

Considering the universe as a quantum gravitational object and assuming that Planck scale and Hawking’s black hole temperature formula play a crucial role in entire cosmic evolution, we propose a simple model of evolving black hole cosmology. We would like to suggest that: (1) Cosmic temperature is inversely proportional to the square root of ordinary matter content; and (2) Considering an increasing ratio of dark matter density to ordinary matter density, increasing cosmic expansion velocity can be understood and there is no need to consider dark energy.