In this work, we address the thermodynamical evolution of the universe in the context of Loop Quantum Cosmology by considering the conditions for the existence of a time arrow in this approach. We find out that, for the existence of a time arrow in our universe, in terms of its obedience to the Generalized Second Law of Thermodynamics, the initial state of the cosmos must correspond to a negative entropy one.
Comment: 13 pages. Submitted to PLB