The talk will give an overview of atom interferometry experiments: tests of the equivalence principle at 10^-9 accuracy and a clock that measures time by the rest mass of cesium atoms and thus realizes the unit of mass with state of the art precision. Moreover, I will present our ongoing measurement of the fine structure constant. At 2×10^-9 accuracy, it is currently the world’s third best. We have since reduced the leading systematic error about 8-fold and the statistical error about 10-fold. As an outlook, we will discuss atom interferometry as a tool for measuring the acceleration of free fall of antimatter.

个人简介：

Positions

Humboldt-University (Berlin, Germany) Physics Ph.D. summa cum laude, 2004

Advisor: Achim Peters

Stanford University, Advisor: Steven Chu. Postdoctoral 05/2004-12/2008

07/2008-present: Assistant Professor (tenure track), Department of Physics, University of California at Berkeley, Berkeley, CA, United States

Honors and Awards

2012, Young Faculty Award, Defense Advanced Research Projects Agency

2011, CAREER Award, National Science Foundation

2009, Fellowship in Science and Engineering, David and Lucille Packard Foundation

2008, NSF Research Highlight #16262, National Science Foundation

2004-2006, Feodor-Lynen Fellowship, Alexander von Humboldt Foundation

2003, Graduate Student Fellowship, Max-Planck Institute for Physical Chemistry

2002, President's Fellowship, Humboldt-University, Berlin, Germany.

2002, Young Researcher's Award, Conference on Precision Electromagnetic Measurement