Signature of the FFLO phase in the collective modes of a trapped ultracold Fermi gas
arXiv:0906.1801 · doi:10.1103/PhysRevLett.103.065301
Abstract
We study theoretically the collective modes of a two-component Fermi gas with attractive interactions in a quasi-one-dimensional harmonic trap. We focus on an imbalanced gas in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase. Using a mean-field theory, we study the response of the ground state to time-dependent potentials. For potentials with short wavelengths, we find dramatic signatures in the large-scale response of the gas which are characteristic of the FFLO phase. This response provides an effective way to detect the FFLO state in experiments.
published version
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Cited by in corpus (9)
- Long-time behavior of the momentum distribution during the sudden expansion of a spin-imbalanced Fermi gas in one dimension
- Stable Fulde-Ferrell-Larkin-Ovchinnikov pairing states in 2D and 3D optical lattices
- Probing the FFLO phase by double occupancy modulation spectroscopy
- Polylogs, thermodynamics and scaling functions of one-dimensional quantum many-body systems
- Interaction quantum quenches in the one-dimensional Fermi-Hubbard model with spin imbalance
- Collective modes and the speed of sound in the Fulde-Ferrell-Larkin-Ovchinnikov state
- Critical phenomena in one dimension from a Bethe ansatz perspective
- Excitonic condensation in spatially separated one-dimensional systems
- Protocol to engineer Fulde-Ferrell-Larkin-Ovchinnikov states in a cold Fermi gas