Gravitational collapse and spacetime singularities in quantum gravity

我们揭示了量子宇宙学中的量子化模糊性与时空奇点缺失之间的关系，推导了在显著量子引力效应下可能存在的超极值克尔时空和虫洞结构的天体物理观测意义，并指出了质心能量可能达到普朗克尺度的近极值旋转黑洞视界附近粒子碰撞的可能性。

We have revealed the relationship between quantisation ambiguities in quantum cosmology and the absence of spacetime singularity, deduced the astrophysical observational implications of superextremal Kerr spacetimes and wormhole structures, both of which may be possible under significant quantum gravity effects, and indicated the possibility of particle collision near the horizon of near-extremal rotating black holes of which the centre-of-mass energy might reach the Planck scale.