Limits on Lorentz violation in gravity from worldwide superconducting gravimeters

Cheng-Gang Shao, Ya-Fen Chen, Rong Sun, Lu-Shuai Cao, Min-Kang Zhou, Zhong-Kun Hu, Chenghui Yu, and Holger Müller
Phys. Rev. D 97, 024019 – Published 17 January 2018

Abstract

We have investigated Lorentz violation through analyzing tides-subtracted gravity data measured by superconducting gravimeters. At the level of precision of superconducting gravimeters, we have brought up and resolved an existing issue of accuracy due to unaccounted local tidal effects in previous solid-earth tidal model used. Specifically, we have taken local tides into account with a brand new first-principles tidal model with ocean tides included, as well as removed potential bias from local tides by using a worldwide array of 12 superconducting gravimeters. Compared with previous test with local gravimeters, a more accurate and competitive bound on space-space components of gravitational Lorentz violation has been achieved up to the order of 1010.

  • Figure
  • Received 28 April 2017
  • Revised 7 July 2017

DOI:https://doi.org/10.1103/PhysRevD.97.024019

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Cheng-Gang Shao, Ya-Fen Chen, Rong Sun, Lu-Shuai Cao, Min-Kang Zhou, and Zhong-Kun Hu*

  • MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Chenghui Yu and Holger Müller

  • Department of Physics, University of California, Berkeley, California 94720, USA

  • *zkhu@mail.hust.edu.cn
  • hm@berkeley.edu

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Issue

Vol. 97, Iss. 2 — 15 January 2018

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