Abstract
Quantum gravity is expected to remove the classical singularity that arises as the end state of gravitational collapse. To investigate this, we work with a toy model of a collapsing homogeneous scalar field. We show that nonperturbative semiclassical effects of loop quantum gravity cause a bounce and remove the black hole singularity. Furthermore, we find a critical threshold scale below which no horizon forms: quantum gravity may exclude very small astrophysical black holes
Original language | English |
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Pages (from-to) | 091302 |
Number of pages | 1 |
Journal | Physical Review Letters |
Volume | 95 |
Issue number | 9 |
DOIs | |
Publication status | Published - 24 Aug 2005 |