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physics.atom-ph2011★ 76 cited
Sub-Doppler laser cooling of potassium atoms
M. Landini, S. Roy, L. Carcagni' +4
We investigate sub-Doppler laser cooling of bosonic potassium isotopes, whose small hyperfine splitting has so far prevented cooling below the Doppler temperature. We find instead…
physics.atom-ph2007★ 189 cited
Feshbach resonances in ultracold K(39)
C. D'Errico, M. Zaccanti, M. Fattori +4
We discover several magnetic Feshbach resonances in collisions of ultracold K(39) atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-fiel…
physics.atom-ph2006★ 121 cited
Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G
A. Bertoldi, G. Lamporesi, L. Cacciapuoti +7
We developed a gravity-gradiometer based on atom interferometry for the determination of the Newtonian gravitational constant \textit{G}. The apparatus, combining a Rb fountain, Ra…