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Erlangen 2022 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 12: Ultracold Atoms and Plasmas (joint session Q/A)

A 12.8: Poster

Dienstag, 15. März 2022, 16:30–18:30, P

Simulating atom dynamics in grating magneto-optical trap — •Aaditya Mishra1, Hendrik Heine1, Joseph Muchovo1, Waldemar Herr1,2, Christian Schubert1,2, and Ernst M. Rasel11Institut für Quantenoptik, Leibniz Universität Hannover — 2Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR), Institut für Satellitengeodäsie und Intertialsensorik, c/o Leibniz Universität Hannover, DLR-SI, Callinstr. 36, D-30167 Hannover, Germany

Ultracold atoms provide exciting opportunities in precision measurements using atom interferometers, quantum information and testing fundamental physics. Grating magneto-optical traps (gMOTs) in conjunction with atom chips provide an efficient and compact source of cold atoms. However, experimentally tuning the gMOT parameters for trapping maximum number of atoms is rather challenging, given the laborious installation of several microfabricated test gratings and re-establishing the ultra-high vacuum required for trapping.

In this poster, I will present a computational simulation of atom dynamics emerging from atom-light interactions, as well as gMOT parameter optimization for atom cooling and trapping. This is useful for quick analysis of various design techniques for gMOTs and atom chips.

This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) due to the enactment of the German Bundestag under grant number DLR 50WM1947 (KACTUS-II), DLR 50RK1978 (QCHIP) and by the German Science Foundation (DFG) under Germany’s Excellence Strategy (EXC 2123) "QuantumFrontiers".

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