Currently, there are three prospective theories: loop quantum gravity, string theory and supersymmetry.
而现在有此种潜力的侯选理论有三个:圈量子引力理论,弦论,和超对称。
参考来源 - 基于Stachel弦宇宙理论的均匀但各向异性BianchiⅠ型宇宙精确解
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Loop quantum gravity
abstract:Loop quantum gravity (LQG) is a theory that attempts to describe the quantum properties of gravity. It is also a theory of quantum space and quantum time, because, according to general relativity, the geometry of spacetime is a manifestation of gravity.