Loop Quantum Gravity, a non-perturbative approach to the quantum gravity
The Loop Quantum Gravity is a non-perturbative, background independent, approach to the quantum description of gravity. It assumes as correct the QM formulated in a suitable manner and the Einstein's equations. It is not a grand unified theory as the only objective is to make compatible the MQ and the GR. It is made in 4 dimensions and takes no additional physical assumptions as the supersimmetry. Some predictions are the removal of the big-bang singularity, an inflationary period for the universe at "small" value of scale factor, a finite entropy equal to area /4 for black holes and the removal of the singularity at r = 0.
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