Superfluid Expansion of a Strongly Interacting Fermi Gas
arXiv:cond-mat/0607298 · doi:10.1103/PhysRevLett.98.050404
Abstract
We study the expansion of a rotating, superfluid Fermi gas. The presence and absence of vortices in the rotating gas is used to distinguish superfluid and normal parts of the expanding cloud. We find that the superfluid pairs survive during the expansion until the density decreases below a critical value. Our observation of superfluid flow at this point extends the range where fermionic superfluidity has been studied to densities of 1.2 10^{11} cm^{-3}, about an order of magnitude lower than any previous study.
5 pages, 5 figures
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Cited by in corpus (18)
- Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
- Bragg spectroscopy of a strongly interacting Fermi gas
- Thermodynamic Measurements in a Strongly Interacting Fermi Gas
- Observation of interference between two molecular Bose-Einstein condensates
- Exact vortex nucleation and cooperative vortex tunneling in dilute BECs
- Dynamics of a vortex lattice in an expanding polariton quantum fluid
- Vortex formation in a rotating two-component Fermi gas
- Radial quadrupole and scissors modes in trapped Fermi gases across the BCS phase transition
- Ladder resummation of spin 1/2 fermion many-body systems with arbitrary partial-wave content
- Effects of boundaries and density inhomogeneity on states of vortex matter in Bose--Einstein condensates at finite temperature
- Quantum algorithm for Bose-Einstein condensate quantum fluid dynamics
- Matter-wave interference in s-wave and p-wave Fermi condensates
- Expansion of a mesoscopic Fermi system from a harmonic trap
- Quantum Effects at Low Energy Atom-Molecule Interface
- Vortex-lattice structures in rotating Bose-Fermi superfluid mixtures
- Vortex lattice in spin-imbalanced unitary Fermi gas
- Vortices in Fermi gases with spin-dependent rotation potentials
- Spontaneous symmetry breaking in rotating condensates of ultracold atoms