Matter-wave interferometers using TAAP rings
Navez, Patrick and Pandey, Saurabh and Mas, Hector and Poulios, Konstantinos and Fernholz, Thomas and von Klitzing, Wolf (2016) Matter-wave interferometers using TAAP rings. New Journal of Physics, 18 . ISSN 1367-2630
We present two novel matter-wave Sagnac interferometers based on ring-shaped time-averaged adiabatic potentials (TAAP). For both the atoms are put into a superposition of two different spin states and manipulated independently using elliptically polarized rf-fields. In the first interferometer the atoms are accelerated by spin-state-dependent forces and then travel around the ring in a matter-wave guide. In the second one the atoms are fully trapped during the entire interferometric sequence and are moved around the ring in two spin-state-dependent `buckets'. Corrections to the ideal Sagnac phase are investigated for both cases. We experimentally demonstrate the key atom-optical elements of the interferometer such as the independent manipulation of two different spin states in the ring-shaped potentials under identical experimental conditions.
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