A Bethe Ansatz solution of the open spin-1/2 XXZ quantum spin chain with nondiagonal boundary terms has recently been proposed. Using a numerical procedure developed by McCoy et al, we find significant evidence that this solution can yield the complete set of eigenvalues for generic values of the bulk and boundary parameters satisfying one linear relation. Moreover, our results suggest that this solution is practical for investigating the ground state of this model in the thermodynamic limit.
Nepomechie R.I., Ravanini F. (2003). Completeness of the Bethe Ansatz solution of the open XXZ chain with nondiagonal boundary terms. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 36(45), 11391-11401 [10.1088/0305-4470/36/45/003].
Completeness of the Bethe Ansatz solution of the open XXZ chain with nondiagonal boundary terms
Ravanini F.
2003
Abstract
A Bethe Ansatz solution of the open spin-1/2 XXZ quantum spin chain with nondiagonal boundary terms has recently been proposed. Using a numerical procedure developed by McCoy et al, we find significant evidence that this solution can yield the complete set of eigenvalues for generic values of the bulk and boundary parameters satisfying one linear relation. Moreover, our results suggest that this solution is practical for investigating the ground state of this model in the thermodynamic limit.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
