量子引力不存在？

[Caravel]

UCL的一个教授提出的新理论，认为引力可能真的不是量子https://physics.aps.org/articles/v16/203

Oppenheim develops a stochastic theory that relies on two separate statistical approaches for the quantum and classical parts of a system. In the statistical description of the quantum side, states are described using density operators that evolve as if the system were open—that is, susceptible to uncontrolled influences from the environment. In the statistical description of the classical side, states are probability distributions on phase space—a framework that is often used to model large numbers of particles, where one does not know the individual position and momentum of each particle.