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Towards constraining parity-violations in gravity with satellite gradiometry
Xu, Peng1,2,3; Wang, Zhi2,4; Qiang, Li-E5
2019-02-10
Source PublicationPHYSICS LETTERS B
ISSN0370-2693
Volume789Pages:378-386
AbstractParity 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.
DOI10.1016/j.physletb.2018.12.049
Language英语
Funding ProjectState Key Laboratory of applied optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences ; The Strategic Priority Research Program of the Chinese Academy of Sciences[XDA1502070401] ; The Strategic Priority Research Program of the Chinese Academy of Sciences[XDA1502070903-01] ; Natural Science Basic Research Plan in Shaanxi Province of China[2017JQ1028] ; Central Universities Funds of China[310826172005]
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000457165400052
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/32485
Collection应用数学研究所
Affiliation1.Chinese Acad Sci, Acad Math & Syst Sci, 55 Zhongguancun East Rd, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Jilin, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Jilin, Peoples R China
5.Changan Univ, Xian 710064, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Xu, Peng,Wang, Zhi,Qiang, Li-E. Towards constraining parity-violations in gravity with satellite gradiometry[J]. PHYSICS LETTERS B,2019,789:378-386.
APA Xu, Peng,Wang, Zhi,&Qiang, Li-E.(2019).Towards constraining parity-violations in gravity with satellite gradiometry.PHYSICS LETTERS B,789,378-386.
MLA Xu, Peng,et al."Towards constraining parity-violations in gravity with satellite gradiometry".PHYSICS LETTERS B 789(2019):378-386.
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