104 citations · 164 across the 4 of their papers we have counts for
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hep-th2009★ 42 cited
The XXZ model with anti-periodic twisted boundary conditions
Sönke Niekamp, Tobias Wirth, Holger Frahm
We derive functional equations for the eigenvalues of the XXZ model subject to anti-diagonal twisted boundary conditions by means of fusion of transfer matrices and by Sklyanin's m…
hep-th2008★ 104 cited
Separation of Variables in the open XXX chain
H. Frahm, A. Seel, T. Wirth
We apply the Sklyanin method of separation of variables to the reflection algebra underlying the open spin-1/2 XXX chain with non-diagonal boundary fields. The spectral problem can…