Feshbach molecule formation through an oscillating magnetic field: subharmonic resonances
arXiv:1503.01700 · doi:10.1088/0953-4075/48/6/065002
Abstract
The conversion of ultracold atoms to molecules via a magnetic Feshbach resonance with a sinusoidal modulation of the field is studied. Different practical realizations of this method in Bose atomic gases are analyzed. Our model incorporates many-body effects through an effective reduction of the complete microscopic dynamics. Moreover, we simulate the experimental conditions corresponding to the preparation of the system as a thermal gas and as a condensate. Some of the experimental findings are clarified. The origin of the observed dependence of the production efficiency on the frequency, amplitude, and application time of the magnetic modulation is elucidated. Our results uncover also the role of the atomic density in the dynamics, specifically, in the observed saturation of the atom-molecule conversion process.
References in corpus (27)
- Observation of resonance condensation of fermionic atom pairs
- Production of cold molecules via magnetically tunable Feshbach resonances
- Creation of ultracold molecules from a Fermi gas of atoms
- Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
- Atom--Molecule Coherence in a Bose-Einstein Condensate
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
- Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas
- Observation of molecules produced from a Bose-Einstein condensate
- Formation of Quantum-Degenerate Sodium Molecules
- Ultracold Fermionic Feshbach Molecules of NaK
- Atom-molecule dark states in a Bose-Einstein condensate
- Production Efficiency of Ultracold Feshbach Molecules in Bosonic and Fermionic Systems
- Dissociation and Decay of Ultra-cold Sodium Molecules
- Ultracold Molecule Production Via a Resonant Oscillating Magnetic Field
- Heteronuclear molecules in an optical dipole trap
- Adiabatic association of ultracold molecules via magnetic field tunable interactions
- Finite range corrections near a Feshbach resonance and their role in the Efimov effect
- Association of ultracold double-species bosonic molecules
- Spontaneous Dissociation of 85Rb Feshbach Molecules
- Association of molecules using a resonantly modulated magnetic field
- Rabi Oscillations between Atomic and Molecular Condensates Driven with Coherent One-Color Photoassociation
- Feshbach molecule formation in a Bose-Fermi mixture
- Feshbach Spectroscopy of a Shape Resonance
- Theory of Feshbach molecule formation in a dilute gas during a magnetic field ramp
- Coherent Atom-Molecule Oscillations in a Bose-Fermi Mixture
- Ramsey interferometry with atoms and molecules: two-body versus many-body phenomena
- Molecule Formation in Optical Lattice Wells by Resonantly Modulated Magnetic Fields