Published:
Springer Science and Business Media LLC, 2021
Published in:
Nature Communications, 12 (2021) 1
Language:
English
DOI:
10.1038/s41467-021-22823-8
ISSN:
2041-1723
Origination:
Footnote:
Description:
AbstractInertial sensors based on cold atoms have great potential for navigation, geodesy, or fundamental physics. Similar to the Sagnac effect, their sensitivity increases with the space-time area enclosed by the interferometer. Here, we introduce twin-lattice atom interferometry exploiting Bose-Einstein condensates of rubidium-87. Our method provides symmetric momentum transfer and large areas offering a perspective for future palm-sized sensor heads with sensitivities on par with present meter-scale Sagnac devices. Our theoretical model of the impact of beam splitters on the spatial coherence is highly instrumental for designing future sensors.