Regular black holes and boson stars in semiclassical gravity
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866908577124319232 |
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| author | Javed, Irfan Husain, Viqar |
| author_facet | Javed, Irfan Husain, Viqar |
| contents | We use a Hamiltonian version of the semiclassical Einstein equation to study classical gravity coupled to a quantum scalar field with potential in spherical symmetry. The system is defined by effective constraints where the matter terms are replaced by their expectation values in a quantum state. For the static case, we find numerically that the resulting equations admit asymptotically flat, de Sitter, and anti-de Sitter boson star and regular black hole solutions. We also show that the Bardeen and Hayward nonsingular black hole proposals (and some generalizations thereof) are not solutions to our equations. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_03935 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Regular black holes and boson stars in semiclassical gravity Javed, Irfan Husain, Viqar General Relativity and Quantum Cosmology We use a Hamiltonian version of the semiclassical Einstein equation to study classical gravity coupled to a quantum scalar field with potential in spherical symmetry. The system is defined by effective constraints where the matter terms are replaced by their expectation values in a quantum state. For the static case, we find numerically that the resulting equations admit asymptotically flat, de Sitter, and anti-de Sitter boson star and regular black hole solutions. We also show that the Bardeen and Hayward nonsingular black hole proposals (and some generalizations thereof) are not solutions to our equations. |
| title | Regular black holes and boson stars in semiclassical gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2510.03935 |