63 citations · 142 across the 5 of their papers we have counts for
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cond-mat.str-el2002★ 22 cited
Disorder-induced enhancement of the persistent current for strongly interacting electrons in one-dimensional rings
Elise Gambetti-Césare, Dietmar Weinmann, Rodolfo A. Jalabert +1
We show that disorder increases the persistent current of a half-filled one-dimensional Hubbard-Anderson ring at strong interaction. This unexpected effect results from a perturbat…
cond-mat.str-el2002★ 63 cited
Cyclic Spin Exchange in Cuprate Spin Ladders
Tamara S. Nunner, Philipp Brune, Thilo Kopp +2
We investigate the influence of a cyclic spin exchange J_{cyc} on the one- and two-triplet excitations of an undoped two-leg S=1/2 ladder, using the density matrix renormalization…