Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects
Abstract We examine a loop quantum gravity (LQG) inspired rotating black hole, treating it as a central supermassive black hole (SMBH) in an extreme mass-ratio inspiral (EMRI) system, where an inspiralling object exhibits eccentric motion around the SMBH. With the orbital dynamics, we derive analyti...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14330-7 |
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| author | Tieguang Zi Shailesh Kumar |
| author_facet | Tieguang Zi Shailesh Kumar |
| author_sort | Tieguang Zi |
| collection | DOAJ |
| description | Abstract We examine a loop quantum gravity (LQG) inspired rotating black hole, treating it as a central supermassive black hole (SMBH) in an extreme mass-ratio inspiral (EMRI) system, where an inspiralling object exhibits eccentric motion around the SMBH. With the orbital dynamics, we derive analytical expressions for the rate of change of orbital energy and angular momentum, as well as orbital evolution, and subsequently generate the gravitational waveforms. To evaluate the difference between EMRI waveforms emitted from the Kerr black hole and a spinning black hole in LQG, we compute the dephasing and mismatch using the Laser Interferometer Space Antenna (LISA) observation. Our result indicates that LISA can distinguish the modified effect of LQG with a parameter as small as $$2\times 10^{-6}$$ 2 × 10 - 6 . The constraint on a parameter in LQG using the Fisher information matrix can be obtained within a fraction error of $$10^{-6}$$ 10 - 6 . |
| format | Article |
| id | doaj-art-d97ff471a88741b59f5bfc3343da0261 |
| institution | DOAJ |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-d97ff471a88741b59f5bfc3343da02612025-08-20T03:22:13ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-05-0185511710.1140/epjc/s10052-025-14330-7Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effectsTieguang Zi0Shailesh Kumar1Department of physics, Nanchang UniversityIndian Institute of TechnologyAbstract We examine a loop quantum gravity (LQG) inspired rotating black hole, treating it as a central supermassive black hole (SMBH) in an extreme mass-ratio inspiral (EMRI) system, where an inspiralling object exhibits eccentric motion around the SMBH. With the orbital dynamics, we derive analytical expressions for the rate of change of orbital energy and angular momentum, as well as orbital evolution, and subsequently generate the gravitational waveforms. To evaluate the difference between EMRI waveforms emitted from the Kerr black hole and a spinning black hole in LQG, we compute the dephasing and mismatch using the Laser Interferometer Space Antenna (LISA) observation. Our result indicates that LISA can distinguish the modified effect of LQG with a parameter as small as $$2\times 10^{-6}$$ 2 × 10 - 6 . The constraint on a parameter in LQG using the Fisher information matrix can be obtained within a fraction error of $$10^{-6}$$ 10 - 6 .https://doi.org/10.1140/epjc/s10052-025-14330-7 |
| spellingShingle | Tieguang Zi Shailesh Kumar Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects European Physical Journal C: Particles and Fields |
| title | Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects |
| title_full | Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects |
| title_fullStr | Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects |
| title_full_unstemmed | Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects |
| title_short | Eccentric extreme mass-ratio inspirals: a gateway to probe quantum gravity effects |
| title_sort | eccentric extreme mass ratio inspirals a gateway to probe quantum gravity effects |
| url | https://doi.org/10.1140/epjc/s10052-025-14330-7 |
| work_keys_str_mv | AT tieguangzi eccentricextrememassratioinspiralsagatewaytoprobequantumgravityeffects AT shaileshkumar eccentricextrememassratioinspiralsagatewaytoprobequantumgravityeffects |