We are performing precision measurements with the two goals: (1) to determine fundamental constants and (2) to improve our system of units, the SI. Currently we are working on tabletop experiments to realize the unit of mass from  the Planck constant, which will in the future be used to redefine the kilogram. We are also involved in a second experiment to measure the Newtonian constant of gravitation. In both experiments, an absolute force or torque is measured with high precision. However, we are not limited to force and torque measurements. We are building instruments and develop methods to deepen our understanding of science through precision measurements. We welcome proposals for new electrical or mechanical instruments or techniques that can improve on existing measurements.

 

References

Schlamminger S, et al: Metrologia 51: S15, 2014

Schlamminger S, et al: Philosophical Transactions of the Royal Society A 372: 20140027, 2014

 

key words

Precision measurements; Gravitational constant; Planck constant; Instruments; Fundamental constants; System of units; Force;

Citizenship:  Open to U.S. citizens

Level:  Open to Postdoctoral applicants