Heidelberg 2015 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 3: Precision Measurements and Metrology I (with Q)

A 3.2: Vortrag

Montag, 23. März 2015, 11:45–12:00, G/gHS

Quantum Test of the Universality of Free Fall with a Dual Species Atom Interferometer — •Logan Richardson, Henning Albers, Hendrik Heine, Jonas Hartwig, Dipankar Nath, Dennis Schlippert, Wolfgang Ertmer, and Ernst Rasel — Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany

Possible violations of the universality of free fall would have deep implications on the current state of modern physics. Although the universality of free fall has been well tested classically, atom intereferometers allow access to tests of the principle from a uniquely quantum perspective. We present the results and developments from our experiment which simultaneously measures the gravitationally induced phase shift of 39K and 87Rb through the use of atom interferometery. With our current setup we were able to measure an Eötvös Ratio of (0.3 ± 5.4) × 10−7. We here present our reasons for test mass choice, and the current limitations for our experiment. We further will discuss future developments, which will allow us to further constrain systematic uncertainty in comparison with previous published results.

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DPG-Physik > DPG-Verhandlungen > 2015 > Heidelberg