Expansion of 1D polarized superfluids: The FFLO state reveals itself
arXiv:1202.3935 · doi:10.1103/PhysRevLett.108.225302
Abstract
We study the expansion dynamics of a one dimensional polarized Fermi gas after sudden release from confinement using both the mean-field Bogoliubov-de Gennes and the numerically exact Time-Evolving Block Decimation methods. Our results show that experimentally observable spin density modulations directly related to the presence of a Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) state develop during the expansion of the cloud, providing incontrovertible evidence of this long-sought state.
4 pages, 5 figures + 2 pages of supplementary material
References in corpus (12)
- Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
- Pairing states of a polarized Fermi gas trapped in a one-dimensional optical lattice
- Quasi-one-dimensional polarized Fermi superfluids
- Fulde-Ferrell-Larkin-Ovchinnikov superfluidity in one-dimensional optical lattices
- Phase Transitions and Pairing Signature in Strongly Attractive Fermi Atomic Gases
- Exact quantum Monte Carlo study of one dimensional trapped fermions with attractive contact interactions
- Theory of quasi-one dimensional imbalanced Fermi gases
- Realization and Detection of Fulde-Ferrell-Larkin-Ovchinnikov Superfluid Phases in Trapped Atomic Fermion Systems
- Concomitant Modulated Superfluidity In Polarized Fermionic Gases
- Ground states and dynamics of population-imbalanced Fermi condensates in one dimension
- Bogoliubov-de Gennes study of trapped spin-imbalanced unitary Fermi gases
- Interferometric probe of paired states
Cited by in corpus (11)
- Long-time behavior of the momentum distribution during the sudden expansion of a spin-imbalanced Fermi gas in one dimension
- Interaction quantum quenches in the one-dimensional Fermi-Hubbard model with spin imbalance
- Critical phenomena in one dimension from a Bethe ansatz perspective
- Spin-orbit-coupled topological Fulde-Ferrell states of fermions in a harmonic trap
- Quantum Coherent States of Interacting Bose-Fermi Mixtures in One Dimension
- Density-Matrix Renormalization Group for Continuous Quantum Systems
- Spin-imbalanced ultracold Fermi gases in a two-dimensional array of tubes
- Protocol to engineer Fulde-Ferrell-Larkin-Ovchinnikov states in a cold Fermi gas
- Pairing correlations in a trapped one-dimensional Fermi gas
- Jackiw-Rebbi-type bound state carrying fractional fermion parity
- Unconventional pairing in few-fermion systems tuned by external confinement