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Showing 1–11 of 11 results
Advanced filters: Author: Naceur Gaaloul Clear advanced filters

  • Conducting atom-optical experiments in space is interesting for fundamental physics and challenging due to different environment compared to ground. Here the authors report matter-wave interferometry in space using atomic BECs in a sounding rocket.

    • Maike D. Lachmann
    • Holger Ahlers
    • Ernst M. Rasel
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6

  • Ultracold ensembles are promising sources for precision measurements when their quantum state can precisely be prepared. Here the authors achieve a quantum state engineering of Bose-Einstein condensates in space using NASA’s Cold Atom Lab aboard the International Space Station making a step forward towards space quantum sensing.

    • Naceur Gaaloul
    • Matthias Meister
    • Nicholas P. Bigelow
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • An atom interferometer now maintains a spatial superposition state for 70 seconds, compared to few seconds in freely falling systems. This could improve measurements of the strength of gravitational fields and quantum gravity studies.

    • Klemens Hammerer
    • Naceur Gaaloul
    News & Views
    Nature Physics
    Volume: 20, P: 1221-1222

  • Using upgraded hardware of the multiuser Cold Atom Lab (CAL) aboard the International Space Station (ISS), Bose–Einstein condensates (BECs) of two atomic isotopes are simultaneously created and used to demonstrate interspecies interactions and dual species atom interferometry in space.

    • Ethan R. Elliott
    • David C. Aveline
    • Jason R. Williams
    Research
    Nature
    Volume: 623, P: 502-508

  • Atom interferometers are highly accurate sensors that use the interference of matter waves to extract knowledge about various quantities, such as the gravitational acceleration. In this work, the authors provide a new interferometer scheme that gives direct access to the gravitational gradient, i.e., higher order moments of the gravitational field.

    • Michael Werner
    • Ali Lezeik
    • Klemens Hammerer
    ResearchOpen Access
    Communications Physics
    Volume: 8, P: 1-8

  • NASA’s Cold Atom Lab has operated on the International Space Station since 2018 to study quantum gases and mature quantum technologies in Earth’s orbit. Here, Williams et al., report on a series of pathfinding experiments exploring the first quantum sensor using atom interferometry in space.

    • Jason R. Williams
    • Charles A. Sackett
    • Nicholas P. Bigelow
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-11

  • Atom interferometers can be useful for precision measurement of fundamental constants and sensors of different type. Here the authors demonstrate a compact twin-lattice atom interferometry exploiting Bose-Einstein condensates (BECs) of 87 Rb atoms.

    • Martina Gebbe
    • Jan-Niclas Siemß
    • Ernst M. Rasel
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Precision measurements with atom interferometers benefit from reducing the expansion rate of the atomic ensemble within the interferometric beam through matter-wave collimation. Here we demonstrate a collimation method based on time-averaged optical potentials and tunable interactions, realizing expansion energies of a few hundred picokelvin.

    • Alexander Herbst
    • Timothé Estrampes
    • Dennis Schlippert
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-8

  • Matter-wave sensors benefit from high flux cold atomic sources. Here, a time-averaged optical dipole trap is reported that generates Bose-Einstein condensates by fast evaporative cooling and further reduces the expansion by means of an all-optical matter-wave lens.

    • Henning Albers
    • Robin Corgier
    • Dennis Schlippert
    ResearchOpen Access
    Communications Physics
    Volume: 5, P: 1-7