Feshbach resonances in ultracold K-39
Anno: 2007
Autori: D’Errico C., Zaccanti M., Fattori M., Roati G., Inguscio M., Modugno G., Simoni A.
Affiliazione autori: LENS and Dipartimento di Fisica, Università di Firenze, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy;
INFN, Via Sansone 1, 50019 Sesto Fiorentino, Italy;
Museo Storico della Fisica e Centro Studi e Ricerche ‘Enrico Fermi’, Compendio del Viminale, 00184 Roma, Italy;
CNR-INFM, Via Sansone 1, 50019 Sesto Fiorentino, Italy;
Laboratoire de Physique des Atomes, Lasers, Molécules et Surfaces, UMR 6627 du CNRS and Université de Rennes, 35042 Rennes Cedex, France
Abstract: 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-field resonance locations allows us to optimize a quantum collision model for potassium isotopes. We employ the model to predict the magnetic-field dependence of scattering lengths and of near-threshold molecular levels. Our findings will be useful to plan future experiments on ultracold K-39 atoms and molecules.
Giornale/Rivista: NEW JOURNAL OF PHYSICS
Volume: 9 Da Pagina: 223-1 A: 223-13
Parole chiavi: Isotopes; Magnetic field effects; Magnetic resonance; Molecular dynamics; Quantum theory; Scattering, Molecular levels; Molecule formation; Scattering lengths, Potassium; Bose-Einstein condensation; Interacting Fermi gas; Dispersion coefficients; Optical lattice; RecombinationDOI: 10.1088/1367-2630/9/7/223Citazioni: 138dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-10-13Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui