Finite temperature QMC study of the one-dimensional polarized Fermi gas

Details Finite temperature QMC study of the one-dimensional polarized Fermi gas Finite temperature QMC study of the one-dimensional polarized Fermi gas

2010-04-26

arxiv.org/abs/1004.4499v2

Phys. Rev. A 82, 013614 (2010)

Physics

Condensed Matter

Quantum Gases

10 pages, 13 figures We added a discussion of the behaviour of the FFLO peak as a function of the attractive interaction stren

Scientific paper

10.1103/PhysRevA.82.013614

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.

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