Development of a micromechanical proof-of-principle experiment for measuring the gravitational force of milligram masses

24.04.2017 11:00 - 12:30

Defensio by Jonas Schmöle

The presented research addresses a simple question: how small can one make a gravitational source mass and still detect its gravitational coupling to a nearby test mass? I describe an experimental scheme based on micromechanical sensing to observe gravity between milligram-scale source masses, thereby improving the current smallest source mass values by three orders of magnitude and possibly even more. Further, I discuss the implications of such measurements both for improved precision measurements of Newton's constant and for a new generation of experiments at the interface between quantum physics and gravity.

Kurt-Gödel Lecture Hall, ground floor, Boltzmanngasse 5, 1090 Vienna