ArbeitsgruppenQuantum SensingNews & Offene Stellen
QUANTUS: First atom-chip-based gravimeter realized

QUANTUS: First atom-chip-based gravimeter realized

The first atom-chip-based gravimeter has been realized in the QUANTUS-1 apparatus paving the way for future compact and robust devices.

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-microGal accuracies in miniaturized, robust devices.

journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.203003