Finite-temperature quantum Monte Carlo study of the one-dimensional polarized Fermi gas

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.013614· OSTI ID:21442963

Wolak, M J ^[1]; Rousseau, V G ^[2]; Miniatura, C ^[1]; Gremaud, B ^[1]; Scalettar, R T ^[3]; Batrouni, G G ^[1]

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1. Centre for Quantum Technologies, National University of Singapore, 2 Science Drive 3, Singapore 117542 (Singapore)
2. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
3. Physics Department, University of California, Davis, California 95616 (United States)

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.

• OSTI ID: 21442963
• Journal Information: Physical Review. A, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevA.82.013614; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APPROXIMATIONS
ATOMS
FERMI GAS
FLUCTUATIONS
HAMILTONIANS
MONTE CARLO METHOD
ONE-DIMENSIONAL CALCULATIONS
POLARIZATION
POTENTIALS
TRAPPING
CALCULATION METHODS
MATHEMATICAL OPERATORS
QUANTUM OPERATORS
VARIATIONS