Loop Quantum Gravity is a non-perturbative approach to quantum gravity that quantizes spacetime itself. In this theory, spacetime is composed of discrete, quantized structures rather than a continuous fabric. Loop quantum gravity reformulates general relativity using quantum variables related to geometry. It predicts that singularities such as those at the Big Bang or black hole centers may be resolved by quantum effects. This approach does not require extra dimensions and remains background independent. Loop quantum gravity provides testable predictions for early-universe cosmology and black hole physics. While mathematically complex, it offers deep conceptual insights into the nature of spacetime. It represents one of the leading candidates for a quantum theory of gravity.
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