Towards constraining parity-violations in gravity with satellite gradiometry
文献类型：期刊论文
| 作者 | P.Xu; Z.Wang; L.E.Qiang |
| 刊名 | Physics Letters B
 |
| 出版日期 | 2019 |
| 卷号 | 789页码:378-386 |
| 关键词 | Astronomy & Astrophysics,Physics |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.12.049 |
| 英文摘要 | Parity violation in gravity, if existed, could have important implications, and it is meaningful to search and test the possible observational effects. Chern-Simons modified gravity serves as a natural model for gravitational parity-violations. Especially, considering extensions to Einstein-Hilbert action up to second order curvature terms, it is known that theories of gravitational parity-violation will reduce to the dynamical Chern-Simons gravity. In this letter, we outline the theoretical principles of testing the dynamical Chern-Simons gravity with orbiting gravity gradiometers, which could be naturally incorporated into future satellite gravity missions. The secular gravity gradient signals, due to the Mashhoon-Theiss (anomaly) effect, in dynamical Chern-Simons gravity are worked out, which can improve the constraint of the corresponding Chern-Simons length scale xi(1/4)(Cs) obtained from such measurement scheme. For orbiting superconducting gradiometers or gradiometers with optical readout, a bound xi(1/4)(CS) <= 10(6) km (or even better) could in principle be obtained, which will be at least 2 orders of magnitude stronger than the current one based on the observations from the GP-B mission and the LAGEOS I, II satellites. (C) 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/62916]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | P.Xu,Z.Wang,L.E.Qiang. Towards constraining parity-violations in gravity with satellite gradiometry[J]. Physics Letters B,2019,789:378-386. |
| APA | P.Xu,Z.Wang,&L.E.Qiang.(2019).Towards constraining parity-violations in gravity with satellite gradiometry.Physics Letters B,789,378-386. |
| MLA | P.Xu,et al."Towards constraining parity-violations in gravity with satellite gradiometry".Physics Letters B 789(2019):378-386. |
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