7 citations · 11 across the 2 of their papers we have counts for
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cond-mat.str-el2023★ 7 cited
Charge and spin gaps of the ionic Hubbard model with density-dependent hopping
Oscar A. Moreno Segura, Karen Hallberg, Armando A. Aligia
We calculate the charge gap and the spin gap of the ionic Hubbard chain including electron-hole symmetric density-dependent hopping. The vanishing of ()…
cond-mat.str-el2009★ 4 cited
Conductance through strongly interacting rings in a magnetic field
Julián Rincón, A. A. Aligia, K. Hallberg
We study the conductance through finite Aharonov-Bohm rings of interacting electrons weakly coupled to non-interacting leads at two arbitrary sites. This model can describe an arra…
cond-mat.str-el2004
Spin-charge separation in Aharonov-Bohm rings of interacting electrons
K. Hallberg, A. A. Aligia, A. P. Kampf +1
We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an A…