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一篇需要关注的研究报告(通讯作者照片)
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Science 5 January 2007
这是物理或者地球物理以及大地测量学方面的一篇文章,介绍了基于原子干涉原理的重力梯度仪
测定牛顿引力常数G的结果.梯度测量中利用了激光冷却铯原子.
文章摘要和来自美国和加拿大的作者情况如下:
Atom Interferometer Measurement of the Newtonian Constant of Gravity
We measured the Newtonian constant of gravity, G, using a gravity gradiometer based on atom interferometry. The gradiometer measures the differential acceleration of two samples of laser-cooled Cs atoms. The change in gravitational field along one dimension is measured when a well-characterized Pb mass is displaced. Here, we report a value of G = 6.693 x 10–11 cubic meters per kilogram second squared, with a standard error of the mean of ±0.027 x 10–11 and a systematic error of ±0.021 x 10–11 cubic meters per kilogram second squared. The possibility that unknown systematic errors still exist in traditional measurements makes it important to measure G with independent methods.
1 Department of Physics, Stanford University, Stanford, CA 94305–4060, USA.
2 Department of Physics and Astronomy, City University of New York, Hunter College, New York, NY 10021, USA.
3 Department of Physics, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada.
* To whom correspondence should be addressed. E-mail: kasevich@stanford.edu
通讯作者照片:
学术简历:
Career History
- B.A., Physics, Dartmouth College, 1985
- M.A., Physics and Philosophy, Merton College, Oxford University, 1987
- Ph.D., Applied Physics, Stanford University, June 1992 (Thesis: "Atom interferometry in an atomic fountain")
- Professor, Physics Dept., Stanford University, 2002-present
- Professor, Physics Dept., Yale University, 2001-2002
- Associate Professor, Physics Dept., Yale University, 1997-2001
- Assistant Professor, Physics Dept., Stanford University, 1992-1997
其研究兴趣:
Atom optics and interferometry and the study of quantum many-body effects in dilute atomic vapors.
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