OSC Colloquium: Dr. Dennis Schlippert

    Thursday, February 7, 2019 - 3:30pm - 5:00pm
    Meinel 307

    1630 E. University Blvd.

    3rd Floor Lobby area


    Open to campus and public.


    Speaker:Dr. Dennis Schlippert

    Host: Felipe Guzman 

    Topic: Matter wave interferometry for inertial sensing and tests of fundamental physics

    Visit our website for future lecture dates and speaker information: http://www.optics.arizona.edu/news-events/events/colloquium For a list of our archived lectures: http://www.optics.arizona.edu/news-events/events/colloquium/archive


    Today's state-of-the-art atom inertial sensors require improvements in stability and accuracy in order to fully exploit their potential with large scale factors on very long baselines on ground and in space, as well as in dynamic environments, e.g. for inertial navigation. I will 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  furthermore anticipate tests of the Universality of Free Fall at levels of parts in 1013 and below[1,2].

    Moreover, I will report on matter wave sensors enhanced with optomechanical resonators [3] as well as fully guided interferometry and discuss the potential of such systems in inertial sensing and fundamentalphysics.


    The VLBAI test stand facility is funded by the DFG. We also acknowledge financial support from DFG through CRC 1227 (DQ-mat), project B07. The presented work is furthermore supported by CRC 1128 (geo-Q), project A02, by the Federal Ministry of Education and Research (BMBF) through the funding program Photonics Research Germany (contract number 13N14875), the German Space Agency (DLR) (PRIMUS-III; Grant No. 50WM1641), and by “Niedersächsisches Vorab” through the “Quantum- and Nano-Metrology” (QUANOMET) initiative within the projectQT3.



    [1] J. Hartwig et al., New J. Phys. 17, 035011(2015)

    [2] D. Schlippert et al., Phys. Rev. Lett. 112, 203002(2014)

    [3] F. Guzmán et al., Appl. Phys. Lett. 104, 221111(2014)

    Speaker Bio(s): 

    Dr. Dennis Schlippert received his Ph.D. in Experimental Physics from the Institute of Quantum Optics at the Leibniz University of Hannover,  on the development of atom interferometers to conduct quantum tests of the Universality of Free Fall. He has completed appointments as a research scholar at NASA’s Jet Propulsion Laboratory and UC Berkeley and has performed as a board member of the Collaborative Research Center geo-Q, funded by the German Research Foundation. Within this collaboration, he also performed as Co-PI of a pilot project to develop hybrid quantum-optomechanical inertial sensors using atom interferometers and compact optomechanical acceleration and seismic sensors.

    Dr. Schlippert currently leads a Research Group on Guided Matter Wave Interferometry at the Leibniz University of Hannover, funded by the German Federal Ministry of Education and Research.


    Refreshments 3:30pm

    Lecture @ 3:45pm - 5pm