Curing Black Hole Singularities with Local Scale Invariance
We show that Weyl-invariant dilaton gravity provides a description of black holes without classical space-time singularities. Singularities appear due to the ill behaviour of gauge fixing conditions, one example being the gauge in which theory is classically equivalent to standard General Relativity...
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Wiley
2016-01-01
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| Series: | Advances in Mathematical Physics |
| Online Access: | http://dx.doi.org/10.1155/2016/6095236 |
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| author | Predrag Dominis Prester |
| author_facet | Predrag Dominis Prester |
| author_sort | Predrag Dominis Prester |
| collection | DOAJ |
| description | We show that Weyl-invariant dilaton gravity provides a description of black holes without classical space-time singularities. Singularities appear due to the ill behaviour of gauge fixing conditions, one example being the gauge in which theory is classically equivalent to standard General Relativity. The main conclusions of our analysis are as follows: (1) singularities signal a phase transition from broken to unbroken phase of Weyl symmetry; (2) instead of a singularity, there is a “baby universe” or a white hole inside a black hole; (3) in the baby universe scenario, there is a critical mass after which reducing mass makes the black hole larger as viewed by outside observers; (4) if a black hole could be connected with white hole through the “singularity,” this would require breakdown of (classical) geometric description; (5) the singularity of Schwarzschild BH solution is nongeneric and so it is dangerous to rely on it in deriving general results. Our results may have important consequences for resolving issues related to information loss puzzle. Though quantum effects are still crucial and may change the proposed classical picture, a position of building quantum theory around essentially regular classical solutions normally provides a much better starting point. |
| format | Article |
| id | doaj-art-7c2d2d3f6639409b93d2e07e60e36b93 |
| institution | Kabale University |
| issn | 1687-9120 1687-9139 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Mathematical Physics |
| spelling | doaj-art-7c2d2d3f6639409b93d2e07e60e36b932025-02-03T01:20:48ZengWileyAdvances in Mathematical Physics1687-91201687-91392016-01-01201610.1155/2016/60952366095236Curing Black Hole Singularities with Local Scale InvariancePredrag Dominis Prester0Department of Physics, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, CroatiaWe show that Weyl-invariant dilaton gravity provides a description of black holes without classical space-time singularities. Singularities appear due to the ill behaviour of gauge fixing conditions, one example being the gauge in which theory is classically equivalent to standard General Relativity. The main conclusions of our analysis are as follows: (1) singularities signal a phase transition from broken to unbroken phase of Weyl symmetry; (2) instead of a singularity, there is a “baby universe” or a white hole inside a black hole; (3) in the baby universe scenario, there is a critical mass after which reducing mass makes the black hole larger as viewed by outside observers; (4) if a black hole could be connected with white hole through the “singularity,” this would require breakdown of (classical) geometric description; (5) the singularity of Schwarzschild BH solution is nongeneric and so it is dangerous to rely on it in deriving general results. Our results may have important consequences for resolving issues related to information loss puzzle. Though quantum effects are still crucial and may change the proposed classical picture, a position of building quantum theory around essentially regular classical solutions normally provides a much better starting point.http://dx.doi.org/10.1155/2016/6095236 |
| spellingShingle | Predrag Dominis Prester Curing Black Hole Singularities with Local Scale Invariance Advances in Mathematical Physics |
| title | Curing Black Hole Singularities with Local Scale Invariance |
| title_full | Curing Black Hole Singularities with Local Scale Invariance |
| title_fullStr | Curing Black Hole Singularities with Local Scale Invariance |
| title_full_unstemmed | Curing Black Hole Singularities with Local Scale Invariance |
| title_short | Curing Black Hole Singularities with Local Scale Invariance |
| title_sort | curing black hole singularities with local scale invariance |
| url | http://dx.doi.org/10.1155/2016/6095236 |
| work_keys_str_mv | AT predragdominisprester curingblackholesingularitieswithlocalscaleinvariance |