Gravitational time advancement under gravity's rainbow
Under gravity's rainbow, we investigate its effects on the gravitational time advancement, which is a natural consequence of measuring proper time span for a photon's round trip. This time advancement can be complementary to the time delay for testing the gravity's rainbow, because th...
| Autors principals: | , |
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| Format: | Article |
| Idioma: | English |
| Publicat: |
Elsevier
2017-09-01
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| Col·lecció: | Physics Letters B |
| Matèries: | |
| Accés en línia: | http://www.sciencedirect.com/science/article/pii/S0370269317305129 |
| _version_ | 1828766838252634112 |
|---|---|
| author | Xue-Mei Deng Yi Xie |
| author_facet | Xue-Mei Deng Yi Xie |
| author_sort | Xue-Mei Deng |
| collection | DOAJ |
| description | Under gravity's rainbow, we investigate its effects on the gravitational time advancement, which is a natural consequence of measuring proper time span for a photon's round trip. This time advancement can be complementary to the time delay for testing the gravity's rainbow, because they are sensitive to different modified dispersion relations (MDRs). Its observability on ranging a spacecraft far from the Earth by two radio and a laser links is estimated at superior conjunction (SC) and inferior conjunction (IC). We find that (1) the IC is more favorable than the SC for measurement on the advancement caused by the rainbow; (2) a specific type of MDR has a significantly larger effect on the advancement than others in both SC and IC cases; and (3) a combination of available optical clocks and the realization of planetary laser ranging in the future will benefit distinguishing the gravity's rainbow from GR by measuring the gravitational time advancement. |
| first_indexed | 2024-12-11T07:14:33Z |
| format | Article |
| id | doaj.art-2a5280448d0b4514a4ba3d5be8d44a08 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-11T07:14:33Z |
| publishDate | 2017-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-2a5280448d0b4514a4ba3d5be8d44a082022-12-22T01:16:15ZengElsevierPhysics Letters B0370-26931873-24452017-09-01772C15215810.1016/j.physletb.2017.06.036Gravitational time advancement under gravity's rainbowXue-Mei Deng0Yi Xie1Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, ChinaSchool of Astronomy and Space Science, Nanjing University, Nanjing 210093, ChinaUnder gravity's rainbow, we investigate its effects on the gravitational time advancement, which is a natural consequence of measuring proper time span for a photon's round trip. This time advancement can be complementary to the time delay for testing the gravity's rainbow, because they are sensitive to different modified dispersion relations (MDRs). Its observability on ranging a spacecraft far from the Earth by two radio and a laser links is estimated at superior conjunction (SC) and inferior conjunction (IC). We find that (1) the IC is more favorable than the SC for measurement on the advancement caused by the rainbow; (2) a specific type of MDR has a significantly larger effect on the advancement than others in both SC and IC cases; and (3) a combination of available optical clocks and the realization of planetary laser ranging in the future will benefit distinguishing the gravity's rainbow from GR by measuring the gravitational time advancement.http://www.sciencedirect.com/science/article/pii/S0370269317305129Gravity's rainbowGravitational time advancement |
| spellingShingle | Xue-Mei Deng Yi Xie Gravitational time advancement under gravity's rainbow Physics Letters B Gravity's rainbow Gravitational time advancement |
| title | Gravitational time advancement under gravity's rainbow |
| title_full | Gravitational time advancement under gravity's rainbow |
| title_fullStr | Gravitational time advancement under gravity's rainbow |
| title_full_unstemmed | Gravitational time advancement under gravity's rainbow |
| title_short | Gravitational time advancement under gravity's rainbow |
| title_sort | gravitational time advancement under gravity s rainbow |
| topic | Gravity's rainbow Gravitational time advancement |
| url | http://www.sciencedirect.com/science/article/pii/S0370269317305129 |
| work_keys_str_mv | AT xuemeideng gravitationaltimeadvancementundergravitysrainbow AT yixie gravitationaltimeadvancementundergravitysrainbow |