Abstract
Three magnetic-field induced heteronuclear Feshbach resonances were identified in collisions between bosonic and fermionic atoms in their absolute ground states. Strong inelastic loss from an optically trapped mixture was observed at the resonance positions of 492, 512, and . The magnetic-field locations of these resonances place a tight constraint on the triplet and singlet cross-species scattering lengths, yielding and , respectively. The width of the loss feature at 543 G is wide; this broad Feshbach resonance should enable experimental control of the interspecies interactions.
- Received 9 June 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.183201
©2004 American Physical Society