Single-beam laser cooling and magnetic trapping using a nano-structured atom chip

ORAL

Abstract

Bose-Einstein condensates (BECs) are interesting sources for a wide range of research areas due to their unique quantum properties. They are typically created using evaporative cooling in high frequency atomic traps. In particular, atom chips have proven their ability to create BECs very efficiently, even in challenging environmental conditions such as sounding rockets or the international space station. With the recent realization of grating magneto-optical traps (gMOTs), an exciting route to further improve such devices has opened: Since all required MOT beams are generated by diffraction from the grating, a single input beam suffices which promises greater long-term stability at reduced complexity.

We present the implementation of a nano-structured atom chip with results on magneto-optical trapping, sub-Doppler cooling, and magnetic trapping. These results pave the way towards a compact single-beam BEC apparatus for general use and transportable applications.

*This work is supported by the German Space Agency (DLR) under grant number DLR 50WM1947 (KACTUS-II) & 50RK1976 (QCHIP), by the European Space Agency (ESA), by the German Science Foundation (DFG) in the CRC 1464 "TerraQ" (Project A03) and under Germany's Excellence Strategy (EXC 2123) "QuantumFrontiers".

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Presenters

  • Hendrik Heine

    • Leibniz Universität Hannover, Institut für Quantenoptik

Authors

  • Hendrik Heine

    • Leibniz Universität Hannover, Institut für Quantenoptik

  • Joseph Muchovo

    • Leibniz Universität Hannover, Institut für Quantenoptik

  • Aaditya Mishra

    • Leibniz Universität Hannover, Institut für Quantenoptik

  • Christian Schubert

    • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Inertialsensorik, c/o LUH, DLR-SI, Callinstraße 36, 30167 Hannover
    • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Intertialsensorik, c/o Leibniz Universität Hannover, DLR-SI

  • Waldemar Herr

    • Institut für Satellitengeodäsie und Inertialsensorik, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Hannover, Germany
    • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Satellitengeodäsie und Intertialsensorik, c/o Leibniz Universität Hannover, DLR-SI

  • Ernst M Rasel

    • Leibniz University Hannover
    • Gottfried Wilhelm Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
    • Leibniz University Hannover, Institute of Quantum Optics, Hannover, Germany
    • Institut für Quantenoptik, Leibniz Universität Hannover, Hannover, Germany
    • Univ Hannover
    • Leibniz Universität Hannover, Institut für Quantenoptik