Towards constraining parity-violations in gravity with satellite gradiometry

doi:10.1016/j.physletb.2018.12.049

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	Towards constraining parity-violations in gravity with satellite gradiometry
	Xu, Peng1,2,3 ; Wang, Zhi 2,4; Qiang, Li-E 5
刊名	PHYSICS LETTERS B
	2019-02-10
卷号	789 页码:378-386
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.
资助项目	State 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研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000457165400052
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/32484]
专题	应用数学研究所
通讯作者	Xu, Peng
作者单位	1.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
推荐引用方式 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.