69 citations · 139 across the 6 of their papers we have counts for
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cond-mat.str-el2001
Comment on "Two Fermi points in the exact solution of the Kondo problem"
N. Andrei
Comment on paper by A. Zvyagin, Phys. Rev. B 64, R060405 (2001).
cond-mat.stat-mech2001
On the Spectrum of the XXZ-chain at roots of unity
D. Braak, N. Andrei
In a recent paper (cond-mat/0009279), Fabricius and McCoy studied the spectrum of the spin 1/2 XXZ-model at Delta = (q+q^{-1})/2 and q^{2N}=1 for integer N >1. They found a certain…