Quantum cosmology is the attempt in theoretical physics to develop a quantum theory of the Universe.This approach attempts to answer open questions of classical physical cosmology, particularly those related to the first phases of the universe.. Classical cosmology is based on Albert Einstein's general theory of relativity (GTR or simply GR) which describes the evolution of …

Loop quantum cosmology (LQC) is a finite, symmetry-reduced model of loop quantum gravity that predicts a "quantum bridge" between contracting and expanding cosmological branches.. The distinguishing feature of LQC is the prominent role played by the quantum geometry effects of loop quantum gravity (LQG). In particular, quantum geometry creates a brand new repulsive …