Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics III
Q 58.2: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Atrium Informatik
Atom interferometers with specular reflection — •Fabio Di Pumpo1, Alexander Friedrich1, Enno Giese1, Albert Roura1, Wolfgang P. Schleich1,2, Daniel M. Greenberger3, and Ernst M. Rasel4 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm — 2Hagler Institute for Advanced Study and Department of Physics and Astronomy, Institute for Quantum Science and Engineering (IQSE), Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843-4242, USA — 3City College of the City University of New York, New York, NY 10031, USA — 4Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
Effects based on quantum clock interference rely on atom interferometers with a non-vanishing proper time difference. We propose an atom interferometer consisting of two beam splitters to separate and recombine the two branches of the interferometer, and two specular mirrors in the middle that invert the incoming momentum. We show that with the help of specular reflection the difference in proper time between the two branches of the resulting geometry is non-vanishing, in contrast to the familiar Mach-Zehnder interferometer with mirrors that rely on a diffractive mechanism. Finally, we propose a realization of specular mirrors by strongly detuned evanescent light fields. The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number 50WM1556 (QUANTUS IV).