Atom interferometry with trapped Fermi gases
Authors: Roati G., de Mirandes E., Ferlaino F., Ott H., Modugno G., Inguscio M.
Autors Affiliation: LENS and Dipartimento di Fisica, Universita` di Firenze, and INFM, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
Abstract: We realize an interferometer with an atomic Fermi gas trapped in an optical lattice under the influence of gravity. The single-particle interference between the eigenstates of the lattice results in macroscopic Bloch oscillations of the sample. The absence of interactions between fermions allows a time-resolved study of many periods of the oscillations, leading to a sensitive determination of the acceleration of gravity. The experiment proves the superiority of noninteracting fermions with respect to bosons for precision interferometry and offers a way for the measurement of forces with microscopic spatial resolution.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 92 (23) Pages from: 230402-1 to: 230402-4
KeyWords: Fermi gasesCitations: 134data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-12-04References taken from IsiWeb of Knowledge: (subscribers only)