Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars
Lorentz symmetry is an important concept in modern physics. Precision pulsar timing was used to put tight constraints on the coefficients for Lorentz violation in the pure-gravity sector of the Standard-Model Extension (SME). We extend the analysis to Lorentz-violating matter-gravity couplings, util...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-09-01
|
| Series: | Symmetry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-8994/11/9/1098 |
| _version_ | 1818001766351896576 |
|---|---|
| author | Lijing Shao |
| author_facet | Lijing Shao |
| author_sort | Lijing Shao |
| collection | DOAJ |
| description | Lorentz symmetry is an important concept in modern physics. Precision pulsar timing was used to put tight constraints on the coefficients for Lorentz violation in the pure-gravity sector of the Standard-Model Extension (SME). We extend the analysis to Lorentz-violating matter-gravity couplings, utilizing three small-eccentricity relativistic neutron star (NS)—white dwarf (WD) binaries. We obtain compelling limits on various SME coefficients related to the neutron, the proton, and the electron. These results are complementary to limits obtained from lunar laser ranging and clock experiments. |
| first_indexed | 2024-04-14T03:37:38Z |
| format | Article |
| id | doaj.art-53a14656d00c479e91590dc731951742 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-04-14T03:37:38Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-53a14656d00c479e91590dc7319517422022-12-22T02:14:40ZengMDPI AGSymmetry2073-89942019-09-01119109810.3390/sym11091098sym11091098Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary PulsarsLijing Shao0Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, ChinaLorentz symmetry is an important concept in modern physics. Precision pulsar timing was used to put tight constraints on the coefficients for Lorentz violation in the pure-gravity sector of the Standard-Model Extension (SME). We extend the analysis to Lorentz-violating matter-gravity couplings, utilizing three small-eccentricity relativistic neutron star (NS)—white dwarf (WD) binaries. We obtain compelling limits on various SME coefficients related to the neutron, the proton, and the electron. These results are complementary to limits obtained from lunar laser ranging and clock experiments.https://www.mdpi.com/2073-8994/11/9/1098pulsar timingStandard-Model Extensionbinary pulsars |
| spellingShingle | Lijing Shao Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars Symmetry pulsar timing Standard-Model Extension binary pulsars |
| title | Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars |
| title_full | Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars |
| title_fullStr | Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars |
| title_full_unstemmed | Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars |
| title_short | Lorentz-Violating Matter-Gravity Couplings in Small-Eccentricity Binary Pulsars |
| title_sort | lorentz violating matter gravity couplings in small eccentricity binary pulsars |
| topic | pulsar timing Standard-Model Extension binary pulsars |
| url | https://www.mdpi.com/2073-8994/11/9/1098 |
| work_keys_str_mv | AT lijingshao lorentzviolatingmattergravitycouplingsinsmalleccentricitybinarypulsars |