Hannover 2020 – scientific programme

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A: Fachverband Atomphysik

A 8: Ultra-cold atoms, ions, and BEC II (joint session A/Q)

A 8.4: Talk

Monday, March 9, 2020, 15:00–15:15, f303

Guided Atom Interferometry with Bose-Einstein Condensates in Painted Optical Potentials — •Sebastian Bode, Knut Stolzenberg, Alexander Herbst, Henning Albers, Ernst M. Rasel, and Dennis Schlippert — Institute of Quantum Optics - Leibniz University Hannover

Inertial navigation allows for the positioning in space diminishing the dependency on global navigation satellite systems. Guided atom interferometers are a candidate for compact inertial measurement units with outstanding accuracy and stability in harsh environments.
We utilize a 2D-acousto-optic deflector (AOD) in the beam path of an optical dipole trap in combination with a software defined radio (SDR) RF-source for the creation of time-dependent arbitrary potentials. The experimental setup facilitates the creation of ⁸⁷Rb BECs with large atom numbers and subsequent guided atom interferometry. For the splitting, holding, and recombination of the atom cloud during the interferometric sequence the confining potential is modified resulting in multiple distinct potential minima with well defined atom populations. We report on first results in absolute and differential measurements and discuss various future configurations.

This work is funded by the Federal Ministry of Education and Research (BMBF) through the funding program Photonics Research Germany (contract number 13N14875), and the DFG under Germany*s Excellence Strategy (EXC 2123) "QuantumFrontiers".