Abstract
We demonstrate a quantum gravimeter by combining the advantages of an atom chip for the generation, delta-kick collimation, and coherent manipulation of freely falling Bose-Einstein condensates (BECs) with an innovative launch mechanism based on Bloch oscillations and double Bragg diffraction. Our high-contrast BEC interferometer realizes tens of milliseconds of free fall in a volume as little as a one centimeter cube and paves the way for measurements with sub- accuracies in miniaturized, robust devices.
- Received 13 May 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.203003
© 2016 American Physical Society
Physics Subject Headings (PhySH)
Focus
Measuring Gravity with an Atom Chip
Published 11 November 2016
A new gravity-measuring device uses ultracold atoms generated by a centimeter-wide atom chip, which might lead to a shoebox-sized gadget.
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