Loop Quantum Gravity

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Loop Quantum Gravity

Loop Quantum Gravity is a candidate for a quantum theory of gravity. Like string theory, it attempts to unify Quantum Mechanics and General Relativity; unlike it, it does not attempt to be a Theory of Everything, since for the moment it only deals with gravity, not with the rest of the forces.

In Loop Quantum Gravity the fundamental building blocks of the universe are tiny loops of gravitational field, that interact with each other and create other loops, thus giving rise to the structure of space. Unlike string theory, it’s background independent, meaning it does not assume a preexisting space-time, but builds space-time from fundamental principles.

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