Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity
Abstract A rotating black hole in loop quantum gravity was constructed by Brahma, Chen, and Yeom based on a nonrotating counterpart using the revised Newman–Janis algorithm recently. For such spacetime, we investigate the weak gravitational deflection of massive particles to explore observational ef...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11180-z |
| _version_ | 1797863767498817536 |
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| author | Yang Huang Zhoujian Cao |
| author_facet | Yang Huang Zhoujian Cao |
| author_sort | Yang Huang |
| collection | DOAJ |
| description | Abstract A rotating black hole in loop quantum gravity was constructed by Brahma, Chen, and Yeom based on a nonrotating counterpart using the revised Newman–Janis algorithm recently. For such spacetime, we investigate the weak gravitational deflection of massive particles to explore observational effects of the quantum correction. The purpose of this article is twofold. First, for Gibbons–Werner (GW) method, a geometric approach computing the deflection angle of particles in curved spacetimes, we refine its calculation and obtain a simplified formula. Second, by using GW method and our new formula, we work out the finite-distance weak deflection angle of massive particles for the rotating black hole in loop quantum gravity obtained by Brahma et al. An analysis to our result reveals the repulsive effect of the quantum correction to particles. What’s more, an observational constraint on the quantum parameter is obtained in solar system. |
| first_indexed | 2024-04-09T22:42:00Z |
| format | Article |
| id | doaj.art-d6ccc3433a73427384da41ee85a3804d |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-09T22:42:00Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-d6ccc3433a73427384da41ee85a3804d2023-03-22T12:10:21ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-01-0183111110.1140/epjc/s10052-023-11180-zFinite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravityYang Huang0Zhoujian Cao1Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal UniversityInstitute for Frontiers in Astronomy and Astrophysics, Beijing Normal UniversityAbstract A rotating black hole in loop quantum gravity was constructed by Brahma, Chen, and Yeom based on a nonrotating counterpart using the revised Newman–Janis algorithm recently. For such spacetime, we investigate the weak gravitational deflection of massive particles to explore observational effects of the quantum correction. The purpose of this article is twofold. First, for Gibbons–Werner (GW) method, a geometric approach computing the deflection angle of particles in curved spacetimes, we refine its calculation and obtain a simplified formula. Second, by using GW method and our new formula, we work out the finite-distance weak deflection angle of massive particles for the rotating black hole in loop quantum gravity obtained by Brahma et al. An analysis to our result reveals the repulsive effect of the quantum correction to particles. What’s more, an observational constraint on the quantum parameter is obtained in solar system.https://doi.org/10.1140/epjc/s10052-023-11180-z |
| spellingShingle | Yang Huang Zhoujian Cao Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity European Physical Journal C: Particles and Fields |
| title | Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| title_full | Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| title_fullStr | Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| title_full_unstemmed | Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| title_short | Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| title_sort | finite distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity |
| url | https://doi.org/10.1140/epjc/s10052-023-11180-z |
| work_keys_str_mv | AT yanghuang finitedistancegravitationaldeflectionofmassiveparticlesbyarotatingblackholeinloopquantumgravity AT zhoujiancao finitedistancegravitationaldeflectionofmassiveparticlesbyarotatingblackholeinloopquantumgravity |