Finite temperature QMC study of the one-dimensional polarized Fermi gas
arXiv:1004.4499 · doi:10.1103/PhysRevA.82.013614
Abstract
Quantum Monte Carlo (QMC) techniques are used to provide an approximation-free investigation of the phases of the one-dimensional attractive Hubbard Hamiltonian in the presence of population imbalance. The temperature at which the "Fulde-Ferrell-Larkin-Ovchinnikov" (FFLO) phase is destroyed by thermal fluctuations is determined as a function of the polarization. It is shown that the presence of a confining potential does not dramatically alter the FFLO regime, and that recent experiments on trapped atomic gases likely lie just within the stable temperature range.
10 pages, 13 figures We added a discussion of the behaviour of the FFLO peak as a function of the attractive interaction strength
References in corpus (21)
- Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
- Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
- Phase diagram of a two-component Fermi gas with resonant interactions
- Deformation of a Trapped Fermi Gas with Unequal Spin Populations
- Phase diagram of a strongly interacting polarized Fermi gas in one dimension
- Pairing states of a polarized Fermi gas trapped in a one-dimensional optical lattice
- Phase diagram of a cold polarized Fermi gas
- Fulde-Ferrell-Larkin-Ovchinnikov superfluidity in one-dimensional optical lattices
- Exact quantum Monte Carlo study of one dimensional trapped fermions with attractive contact interactions
- Density-Matrix Renormalization Group Study of Trapped Imbalanced Fermi Condensates
- Generic Phase Diagram of Fermion Superfluids with Population Imbalance
- Exact Numerical Study of Pair Formation with Imbalanced Fermion Populations
- The FFLO state in the one-dimensional attractive Hubbard model and its fingerprint in the spatial noise correlations
- The Stochastic Green Function (SGF) algorithm
- FFLO state in 1, 2, and 3 dimensional optical lattices combined with a non-uniform background potential
- Directed update for the Stochastic Green Function algorithm
- Finite temperature phase diagram of a spin-polarized ultracold Fermi gas in a highly elongated harmonic trap
- Fermion pairing with spin-density imbalance in an optical lattice
- Breached Superfluidity via P-Wave Coupling
- Pair formation and collapse in imbalanced Fermion populations with unequal masses
- Ground states and dynamics of population-imbalanced Fermi condensates in one dimension