Testing parity symmetry of gravity with gravitational waves
The examination of parity symmetry in gravitational interactions has drawn increasing attention. Although Einstein’s General Relativity is parity-conserved, numerous theories of parity-violating (PV) gravity in different frameworks have recently been proposed for different motivations. In this revie...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2022.1109086/full |
| _version_ | 1797955265740406784 |
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| author | Jin Qiao Jin Qiao Jin Qiao Zhao Li Zhao Li Tao Zhu Tao Zhu Ran Ji Guoliang Li Guoliang Li Wen Zhao Wen Zhao |
| author_facet | Jin Qiao Jin Qiao Jin Qiao Zhao Li Zhao Li Tao Zhu Tao Zhu Ran Ji Guoliang Li Guoliang Li Wen Zhao Wen Zhao |
| author_sort | Jin Qiao |
| collection | DOAJ |
| description | The examination of parity symmetry in gravitational interactions has drawn increasing attention. Although Einstein’s General Relativity is parity-conserved, numerous theories of parity-violating (PV) gravity in different frameworks have recently been proposed for different motivations. In this review, we briefly summarize the recent progress of these theories, and focus on the observable effects of PV terms in the gravitational waves (GWs), which are mainly reflected in the difference between the left-hand and right-hand polarization modes. We are primarily concerned with the implications of these theories for GWs generated by the compact binary coalescences and the primordial GWs generated in the early Universe. The deviation of GW waveforms and/or primordial power spectrum can always be quantified by the energy scale of parity violation of the theory. Applying the current and future GW observation from laser interferometers and cosmic microwave background radiation, the current and potential constraints on the PV energy scales are presented, which indicates that the parity symmetry of gravity can be tested in high energy scale in this new era of gravitational waves. |
| first_indexed | 2024-04-10T23:31:25Z |
| format | Article |
| id | doaj.art-1e33827bc16642a5bd46f4a7d65acc6b |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-04-10T23:31:25Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-1e33827bc16642a5bd46f4a7d65acc6b2023-01-12T05:51:58ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2023-01-01910.3389/fspas.2022.11090861109086Testing parity symmetry of gravity with gravitational wavesJin Qiao0Jin Qiao1Jin Qiao2Zhao Li3Zhao Li4Tao Zhu5Tao Zhu6Ran Ji7Guoliang Li8Guoliang Li9Wen Zhao10Wen Zhao11Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, ChinaSchool of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, ChinaDepartment of Astronomy, University of Science and Technology of China, Hefei, ChinaSchool of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, ChinaDepartment of Astronomy, University of Science and Technology of China, Hefei, ChinaInstitute for Theoretical Physics and Cosmology, Zhejiang University of Technology, Hangzhou, ChinaUnited Center for Gravitational Wave Physics (UCGWP), Zhejiang University of Technology, Hangzhou, ChinaResearch School of Physics, Australian National University, Acton, ACT, AustraliaPurple Mountain Observatory, Chinese Academy of Sciences, Nanjing, ChinaSchool of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, ChinaSchool of Astronomy and Space Sciences, University of Science and Technology of China, Hefei, ChinaDepartment of Astronomy, University of Science and Technology of China, Hefei, ChinaThe examination of parity symmetry in gravitational interactions has drawn increasing attention. Although Einstein’s General Relativity is parity-conserved, numerous theories of parity-violating (PV) gravity in different frameworks have recently been proposed for different motivations. In this review, we briefly summarize the recent progress of these theories, and focus on the observable effects of PV terms in the gravitational waves (GWs), which are mainly reflected in the difference between the left-hand and right-hand polarization modes. We are primarily concerned with the implications of these theories for GWs generated by the compact binary coalescences and the primordial GWs generated in the early Universe. The deviation of GW waveforms and/or primordial power spectrum can always be quantified by the energy scale of parity violation of the theory. Applying the current and future GW observation from laser interferometers and cosmic microwave background radiation, the current and potential constraints on the PV energy scales are presented, which indicates that the parity symmetry of gravity can be tested in high energy scale in this new era of gravitational waves.https://www.frontiersin.org/articles/10.3389/fspas.2022.1109086/fullparity symmetrygravitational wavescircular polarizationbirefringence effectsprimordial power spectrum |
| spellingShingle | Jin Qiao Jin Qiao Jin Qiao Zhao Li Zhao Li Tao Zhu Tao Zhu Ran Ji Guoliang Li Guoliang Li Wen Zhao Wen Zhao Testing parity symmetry of gravity with gravitational waves Frontiers in Astronomy and Space Sciences parity symmetry gravitational waves circular polarization birefringence effects primordial power spectrum |
| title | Testing parity symmetry of gravity with gravitational waves |
| title_full | Testing parity symmetry of gravity with gravitational waves |
| title_fullStr | Testing parity symmetry of gravity with gravitational waves |
| title_full_unstemmed | Testing parity symmetry of gravity with gravitational waves |
| title_short | Testing parity symmetry of gravity with gravitational waves |
| title_sort | testing parity symmetry of gravity with gravitational waves |
| topic | parity symmetry gravitational waves circular polarization birefringence effects primordial power spectrum |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2022.1109086/full |
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