Boson-Fermion pairing in Bose-Fermi mixtures on 1D optical lattices

Details Boson-Fermion pairing in Bose-Fermi mixtures on 1D optical lattices Boson-Fermion pairing in Bose-Fermi mixtures on 1D optical lattices

2007-06-14

arxiv.org/abs/0706.2133v2

Physics

Condensed Matter

Other Condensed Matter

accepted for publication by Phys. Rev. A

Scientific paper

10.1103/PhysRevA.77.012115

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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