Quantum gravity (QG) is a field of theoretical physics that seeks to unify quantum mechanics, which describes three of the four known fundamental interactions, with general relativity, which describes the fourth fundamental interaction, gravity.
Quantum gravity (QG) is a field of theoretical physics. This field of theoretical physics seeks to unify quantum mechanics. Unify quantum mechanics describes three of the four known fundamental interactions. This is with general relativity. General relativity describes the fourth fundamental interaction. The fourth fundamental interaction is gravity.