Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 7: Ultracold atoms and BEC - I (with A)
Q 7.8: Vortrag
Montag, 6. März 2017, 16:30–16:45, N 1
Towards sagnac interferometers based on TAAP ring matterwave wave guides — •Saurabh Pandey1,2, Hector Mas1,3, Giannis Drougakis3, Patrick Navez4, Konstantinos Poulios1, Georgios Vasilakis1, Thomas Fernholz5, and Wolf von Klitzing1 — 12Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion 70013, Greece — 2Depart. of Physics, University of Crete, Heraklion 70113, Greece — 3Depart. of Materials, Science and Technology, University of Crete, Heraklion 70113, Greece — 4Crete Center for Quantum Complexity and Nanotechnology, Depart. of Physics, University of Crete, Heraklion 70113, Greece — 5School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom
We present a rotation-sensing scheme utilizing cold atoms based on a time averaged adiabatic potential (TAAP) ring trap. A waveguide is realized for trapping and coherently transporting atoms in a ring shaped geometry. For the first time, we demonstrate spin dependent trapping and manipulation of neutral atoms in a ring trap. In a TAAP ring, atoms can be split and recombined either using atomic spins via two photon rf/mw pulse as beam-splitters and mirrors or external degree of freedom i.e. momentum, via velocity selective near resonant two Bragg/Raman laser beams. Experimental results are presented, trapping atoms in a TAAP ring, variable radii of the ring and guiding the two clock states of 87Rb independently in two arms of the interferometer.