Also known as LQG
theory that attempts to canonically quantize gravity via Ashtekar variables
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Loop quantum gravity (LQG) is a theory of quantum gravity that incorporates matter of the Standard Model into the framework established for the intrinsic quantum gravity case.
It is an attempt to develop a quantum theory of gravity based directly on Albert Einstein's geometric formulation, general relativity. As a theory, LQG postulates that the structure of space and time is composed of finite loops woven into an extremely fine fabric or network. These networks of loops are called spin networks. The evolution of a spin network, or spin foam, has a scale on the order of a Planck length, approximately 10 meters, and smaller scales are meaningless. Consequently, not just matter, but space itself, prefers an atomic structure.
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