Rostock 2019 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Precision Measurements and Metrology III

Q 54.1: Gruppenbericht

Donnerstag, 14. März 2019, 14:00–14:30, S SR 111 Maschb.

Matter wave interferometry for inertial sensing and tests of fundamental physics — •Dennis Schlippert¹, Henning Albers¹, Claus Braxmaier², Felipe Guzmán^2,3, Lee Kumanchik², Christian Meiners¹, Ashwin Rajagopalan¹, Robert Rengelink¹, Logan L. Richardson^1,3, Christian Schubert¹, Dorothee Tell¹, Étienne Wodey¹, Wolfgang Ertmer¹, and Ernst M. Rasel¹ — ¹Institut für Quantenoptik, Leibniz Universität Hannover, Germany — ²DLR Institut für Raumfahrtsysteme, Bremen, Germany — ³College of Optical Sciences, University of Arizona, Tucson, USA

We report on recent developments concerning the commissioning of the Very Long Baseline Atom Interferometry test stand. Stretching over 15 m, the facility with its high-performance magnetic shield, Rb-Yb atom sources, and a low-frequency seismic attenuation system, will allow us to take on the competition with the stability of superconducting gravimeters with absolute measurements. By operating in a differential mode, we anticipate tests of the Universality of Free Fall at levels of parts in 10¹³ and below. We will furthermore report on matter wave sensors enhanced with opto-mechanical resonators as well as fully guided interferometry and discuss the potential of such systems in inertial sensing and fundamental physics.

This work is supported by CRC 1128 geo-Q, CRC 1227 DQ-mat, the German Space Agency (DLR) through the Federal Ministry for Economic Affairs and Energy (BMWi) (Grant No. 50WM1641), the Federal Ministry of Education and Research (BMBF) through Photonics Research Germany (Grant No. 13N14875), and QUANOMET.