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Prof. Wen-Bin Shen
Wuhan University, China
Challenge of Testing General Relativity Theory Based on Observing Ultra-high Precise Time and Frequency Signals
General relativity theory (GRT) predicts that a clock runs quicker at a position with higher gravity potential than an identical clock located at a lower potential, or the vibration frequency of a clock at higher potential is larger than that of the clock located at lower potential. Though GRT has been confirmed by various experiments, the accuracies of these experiments are not high enough. With quick development of time-frequency science, especially after optical atomic clocks with stabilities and accuracies of 10E-18 levels were created, GRT will be confronted with a great challenge. Here we present and discuss five different kinds of approaches to challengingly test GRT, including clock transportation comparison (CTC), gravity frequency signal shift (GFSS), coaxial cable time transfer (CCTT), optical fiber frequency transfer (OFFT), and satellite frequency signal transmission (SFST). This study is supported by National 973 Project China (grant No. 2013CB733301 and 2013CB733305) and NSFC (grant Nos. 41174011, 41210006, 41429401).
Dr. Wen-Bin Shen, Professor, Department of Geophysics, School of Geodesy and Geomatics, Wuhan University. In 1982, 1985 and 1996 he obtained BS, MS at Wuhan Technical University of Surveying and Mapping (China), and Ph. D at Graz Technical University (Austria), respectively. His current position is Dean and distinguished Professor at Department of Geophysics, School of Geodesy and Geomatics, Wuhan University. He received an honor of 2015 Heiskanen Award, issued by Ohio State University. His research interests include: Gravity theory and applications; temporal gravity fields; Earth rotation; Earth’s free oscillation; Relativistic geodesy and GNSS applications. He has about 240 publications (including presentations at various meetings).
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April 18-20, 2017
Paper or Abstract Submission Due:
September 28, 2016
October 10, 2016
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February 15, 2017
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February 13, 2017
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