Effects of disorder on atomic density waves and spin-singlet dimers in one-dimensional optical lattices
Effects of disorder on atomic density waves and spin-singlet dimers in one-dimensional optical lattices
Using the Bethe-ansatz density-functional theory, we study a one-dimensional Hubbard model of confined attractively interacting fermions in the presence of a uniformly distributed disorder. The strongly correlated Luther-Emery nature of the attractive one-dimensional Hubbard model is fully taken into account as the reference system in the density-functional theory. The effects …