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.

Atom Interferometry with trapped Fermi gases / G. ROATI; E. DE MIRANDES; F. FERLAINO; H. OTT; G. MODUGNO; M. INGUSCIO. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 92:(2004), pp. 230402-1-230402-4.

Atom Interferometry with trapped Fermi gases

MODUGNO, GIOVANNI;INGUSCIO, MASSIMO
2004

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.
2004
92
230402-1
230402-4
G. ROATI; E. DE MIRANDES; F. FERLAINO; H. OTT; G. MODUGNO; M. INGUSCIO
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/307210
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