Hannover 2016 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
A: Fachverband Atomphysik
A 5: Precision Measurements and Metrology II (with Q)
A 5.3: Talk
Monday, February 29, 2016, 15:00–15:15, a310
Advances towards a T3-interferometer — •Matthias Zimmermann1, Maxim A. Efremov1, Wolfgang P. Schleich1, Sara A. DeSavage2, Jon P. Davis2, Frank A. Narducci2, and Ernst M. Rasel3 — 1Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, 89081 Ulm, Germany — 2EO Sensors Division, Naval Air Systems Command, Patuxent River, MD 20670, USA — 3Institut für Quantenoptik, Leibniz Universität Hannover, 30167 Hannover, Germany
We present the theoretical background for and the progress on a novel atom interferometer with a phase shift scaling as T3 in contrast to conventional atom interferometers with a scaling of T2 [1]. Here T denotes the travelling time of the atoms in-between two Raman pulses. These pulses prepare a superposition of two magnetic sublevels while an external magnetic field is applied to imprint two different effective accelerations g1 and g2 for these two states [2]. A sequence consisting of four Raman pulses is used to close the interferometer and to obtain the T3-scaling. Due to the position-dependent Zeeman shift the atomic resonance frequency changes throughout the experiment and the laser frequency has to be chirped in order to stay in resonance.
W.P. Schleich, D.M. Greenberger, and E.M. Rasel, New J. Phys. 15, 013007 (2013)
[2] J.P. Davis and F. A. Narducci, J. Mod. Opt., 55, 3173 (2008)