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Boson-fermion pairing in Bose-Fermi mixtures on one-dimensional optical lattices

Abstract : Boson-fermion pairing is considered in a discrete environment of bosons and fully spin-polarized fermions, coupled via an attractive Bose-Fermi Hubbard Hamiltonian in one dimension. The results of the T-matrix approximation for particles of equal mass and at double half-filling are compared with the results of exact diagonalization and with quantum Monte Carlo results. Satisfactory agreement for most quantities is found. The appearance of a stable, weak-coupling pairing mode is also confirmed.
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http://hal.in2p3.fr/in2p3-00421184
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Submitted on : Thursday, October 1, 2009 - 10:37:17 AM
Last modification on : Wednesday, September 16, 2020 - 5:04:15 PM

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X. Barillier-Pertuisel, S. Pittel, L. Pollet, P. Schuck. Boson-fermion pairing in Bose-Fermi mixtures on one-dimensional optical lattices. Physical Review A, American Physical Society, 2008, 77, pp.012115. ⟨10.1103/PhysRevA.77.012115⟩. ⟨in2p3-00421184⟩

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