title: Superfluid quantum interference in multiple-turn reciprocal geometry.
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.
authors.affiliation: The Rowland Institute at Harvard, Harvard University, Cambridge, Massachusetts 02142, USA.
authors.forename: Supradeep
authors.initials: S
authors.lastname: Narayana
authors.forename: Yuki
authors.initials: Y
authors.lastname: Sato