Visualization of vortex bound states in polarized Fermi gases at unitarity
arXiv:cond-mat/0607179 · doi:10.1103/PhysRevLett.98.060406
Abstract
We analyse theoretically a single vortex in 3D trapped atomic Fermi gases with population polarization near a broad Feshbach resonance. Above a critical polarization the Andreev-like bound states inside the core become occupied for the majority component. As a result, the local density difference at the core center acquires a sudden rise at low temperautres. This provides a visualization of the lowest bound state within the absorption imaging technique. As the polarization increases, the core expands gradually, and correspondingly, the energy of the lowest bound state decreases.
4 pages, and 4 figures; Published version in PRL
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- Universal Aspects of Vortex Reconnections across the BCS-BEC Crossover
- Properties of a quantum vortex in neutron matter
- Dynamics of spin-polarized impurity in ultracold Fermi gas
- Spin-polarized vortices with reversed circulation
- Vortex core states in superfluid Fermi-Fermi mixtures with unequal masses
- Quantum vortices in fermionic superfluids: from ultracold atoms to neutron stars
- Pair density waves and vortices in an elongated two-component Fermi gas
- Magnetization profile and core level spectroscopy in a multiply quantized vortex of imbalanced Fermi superfluids
- Vortex lattice in spin-imbalanced unitary Fermi gas
- Effect of Population Imbalance on Vortex Mass in Superfluid Fermi Gases