The Generalized Uncertainty Principle and the Friedmann equations

Abstract

The Generalized Uncertainty Principle (or GUP) affects the dynamics in Plank scale. So the known equations of physics are expected to get modified at that very high energy regime. Very recently authors in (Ali et al. 2009) proposed a new Generalized Uncertainty Principle (or GUP) with a linear term in Plank length. In this article, the proposed GUP is expressed in a more general form and the effect is studied for the modification of the Friedmann equations of the FRW universe. In the midway the known entropy-area relation get some new correction terms, the leading order term being proportional to square root of area.

6 pages, accepted for publication in Astrophysics and Space Science

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• Tsallis uncertainty
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• Removing the Big Bang Singularity: The role of the generalized uncertainty principle in quantum gravity
• Quantum Cosmology with Dynamical Vacuum in a Minimal-Length Scenario
• Feasibility analysis of a proposed test of quantum gravity via novel optical magnetometry in xenon