Loop Quantum Gravity

Loop Quantum Gravity was developed in the twenty-first century by physicists to meld quantum mechanics and general relativity into one. Just as in quantum mechanics, which describes a smallest quanta of light, the photon, for instance, loop quantum gravity describes a smallest quanta of volume (and area). This idea has great appeal because if there is a smallest quanta of volume then it would be impossible for a singularity to form, and physics would still apply even inside a black hole and at the big bang (which wouldn't exactly be a big bang but a big bounce).

Another aspect of loop quantum gravity is that the links that make up the loops stitching together the quanta volumes of spacetime are usually local. But not always. It is possible that a link between nodes of volume could have been established and then separated. Somewhere across the universe then could be an entangled quanta of volume corresponding to a local quanta of volume . . .

Source:

Sci-pedia - The Online Resource for Science - Loop Quantum Gravity