Strongly Interacting Atoms and Molecules in a 3D Optical Lattice
arXiv:cond-mat/0605099 · doi:10.1088/0953-4075/39/10/S05
Abstract
We report on the realization of a strongly interacting quantum degenerate gas of fermionic atoms in a three-dimensional optical lattice. We prepare a band-insulating state for a two-component Fermi gas with one atom per spin state per lattice site. Using a Feshbach resonance, we induce strong interactions between the atoms. When sweeping the magnetic field from the repulsive side towards the attractive side of the Feshbach resonance we induce a coupling between Bloch bands leading to a transfer of atoms from the lowest band into higher bands. Sweeping the magnetic field across the Feshbach resonance from the attractive towards the repulsive side leads to two-particle bound states and ultimately to the formation of molecules. From the fraction of formed molecules we determine the temperature of the atoms in the lattice.
References in corpus (22)
- Cold bosonic atoms in optical lattices
- Observation of resonance condensation of fermionic atom pairs
- Computational complexity and fundamental limitations to fermionic quantum Monte Carlo simulations
- Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
- Creation of ultracold molecules from a Fermi gas of atoms
- Exploring phase coherence in a 2D lattice of Bose-Einstein condensates
- Fermionic atoms in a 3D optical lattice: Observing Fermi-surfaces, dynamics and interactions
- High-temperature superfluidity of fermionic atoms in optical lattices
- Confinement induced molecules in a 1D Fermi gas
- Measurement of positive and negative scattering lengths in a Fermi gas of atoms
- Radio-Frequency Spectroscopy of Ultracold Fermions
- Molecules of Fermionic Atoms in an Optical Lattice
- Effect of cold collisions on spin coherence and resonance shifts in a magnetically trapped ultra-cold gas
- Interaction-induced adiabatic cooling and antiferromagnetism of cold fermions in optical lattices
- Self-consistent model of ultracold atomic collisions and Feshbach resonances in tight harmonic traps
- Lifetime of molecule-atom mixtures near a Feshbach resonance in 40K
- Defect-Suppressed Atomic Crystals in an Optical Lattice
- Feshbach resonances in an optical lattice
- Fermions in Optical Lattices across Feshbach Resonance
- Thermometry of Fermionic Atoms in an Optical Lattice
- Quantum phase transitions in the Fermi-Bose Hubbard model
- Adiabatic cooling of Fermions in an optical lattice
Cited by in corpus (13)
- Direct observation of coherent inter-orbital spin-exchange dynamics
- Multiband bosons in optical lattices
- Interaction Quench Induced Multimode Dynamics of Finite Atomic Ensembles
- Pairing in a system of a few attractive fermions in a harmonic trap
- Two-flavor mixture of a few fermions of different mass in a one-dimensional harmonic trap
- Heteronuclear molecules in an optical lattice: Theory and experiment
- How to estimate the differential acceleration in a two-species atom interferometer to test the equivalence principle
- Quantum states of p-band bosons in optical lattices
- Multi-orbital bosons in bipartite optical lattices
- Dynamical instability and loss of p-band bosons in optical lattices
- Two dipolar atoms in a harmonic trap
- Adiabatic cooling of a tunable Bose-Fermi mixture in an optical lattice
- Statistical mechanics of a Feshbach coupled Bose-Fermi gas in an optical lattice