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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.03191 |
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| _version_ | 1866912260381736960 |
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| author | Barenboim, Jonathan Frolov, Andrei V. Kunstatter, Gabor |
| author_facet | Barenboim, Jonathan Frolov, Andrei V. Kunstatter, Gabor |
| contents | We present a general class of non-singular black holes in semi-classical, two-dimensional dilaton gravity, with a focus on a Bardeen-like model. The equations of motion for an evaporating black hole including backreaction are solved numerically. The apparent horizons evaporate smoothly in finite time to form a compact trapped region. Backreaction effects lead to the formation of additional trapped and anti-trapped regions after the primary black hole becomes un-trapped. Numerical simulations of microscopic black holes yield a final spacetime that is free of apparent horizons and Cauchy horizons. This would imply that the evaporation of regular black holes is a unitary process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_03191 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Evaporation of regular black holes in 2D dilaton gravity Barenboim, Jonathan Frolov, Andrei V. Kunstatter, Gabor General Relativity and Quantum Cosmology We present a general class of non-singular black holes in semi-classical, two-dimensional dilaton gravity, with a focus on a Bardeen-like model. The equations of motion for an evaporating black hole including backreaction are solved numerically. The apparent horizons evaporate smoothly in finite time to form a compact trapped region. Backreaction effects lead to the formation of additional trapped and anti-trapped regions after the primary black hole becomes un-trapped. Numerical simulations of microscopic black holes yield a final spacetime that is free of apparent horizons and Cauchy horizons. This would imply that the evaporation of regular black holes is a unitary process. |
| title | Evaporation of regular black holes in 2D dilaton gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2503.03191 |