Coherent Atom-Molecule Oscillations in a Bose-Fermi Mixture

Abstract

We create atom-molecule superpositions in a Bose-Fermi mixture of Rb-87 and K-40 atoms. The superpositions are generated by ramping an applied magnetic field near an interspecies Fano-Feshbach resonance to coherently couple atom and molecule states. Rabi- and Ramsey-type experiments show oscillations in the molecule population that persist as long as 150 microseconds and have up to 50% contrast. The frequencies of these oscillations are magnetic-field dependent and consistent with the predicted molecule binding energy. This quantum superposition involves a molecule and a pair of free particles with different statistics (i.e. bosons and fermions), and furthers exploration of atom-molecule coherence in systems without a Bose-Einstein condensate.

5 pages, 4 figures

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Cited by in corpus (15)

• Fluctuations and phase transitions in Larkin-Ovchinnikov liquid crystal states of population-imbalanced resonant Fermi gas
• Spin-Orbit Coupling Induced Coherent Production of Feshbach Molecules in a Degenerate Fermi Gas
• Controlling a quantum gas of polar molecules in an optical lattice
• Rabi Oscillations between Atomic and Molecular Condensates Driven with Coherent One-Color Photoassociation
• Feshbach molecule formation in a Bose-Fermi mixture
• Quantum liquid-crystal order in resonant atomic gases
• Feshbach-Stabilized Insulator of Bosons in Optical Lattices
• From hardcore Bosons to free Fermions with Painlev{é} V
• Phase transitions of the coherently coupled two-component Bose gas in a square optical lattice
• Quantum and Thermal Phase Transitions in a Bosonic Atom-Molecule Mixture in a Two-dimensional Optical Lattice
• Feshbach molecule formation through an oscillating magnetic field: subharmonic resonances
• Few-body ultracold reactions in a Bose-Fermi mixture
• Dynamics of quantum quenching for BCS-BEC systems in the shallow BEC regime
• Nonequilibrium Dynamics of Ultracold Fermi Superfluids
• Non-equilibrium dynamics and atom-pair coherence in strongly interacting Bose-Fermi mixtures