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Parity and Charge Conjugation Symmetries and S Matrix of the XXZ Chain
Anastasia Doikou, Rafael I. Nepomechie
We formulate the notion of parity for the periodic XXZ spin chain within the Quantum Inverse Scattering Method. We also propose an expression for the eigenvalues of the charge conj…
Discrete Symmetries and S Matrix of the XXZ Chain
Anastasia Doikou, Rafael I. Nepomechie
We formulate the notion of parity for the periodic XXZ spin chain within the Quantum Inverse Scattering Method. We also propose an expression for the eigenvalues of the charge conj…
Duality and quantum-algebra symmetry of the A_{N-1}^(1) open spin chain with diagonal boundary fields
Anastasia Doikou, Rafael I. Nepomechie
We show that the transfer matrix of the A_{N-1}^(1) open spin chain with diagonal boundary fields has the symmetry U_q (SU(L)) x U_q (SU(N-L)) x U(1), as well as a ``duality'' symm…
Bulk and Boundary S Matrices for the SU(N) Chain
Anastasia Doikou, Rafael I. Nepomechie
We consider both closed and open integrable antiferromagnetic chains constructed with the SU(N)-invariant R matrix. For the closed chain, we extend the analyses of Sutherland and K…