Abstract
We report the observation of superfluid quantum interference in a compact, large-area matter-wave interferometer consisting of a multiple-turn interfering path in reciprocal geometry. Utilizing the Sagnac effect from Earth’s rotation in conjunction with a phase shifter made of superfluid heat current, we demonstrate that such a scheme can be extended for sensitive rotation sensing as well as for general interferometry.
- Received 3 May 2011
DOI:https://doi.org/10.1103/PhysRevLett.106.255301
© 2011 American Physical Society