Parity and Charge Conjugation Symmetries and S Matrix of the XXZ Chain

Details Parity and Charge Conjugation Symmetries and S Matrix of the XXZ Chain Parity and Charge Conjugation Symmetries and S Matrix of the XXZ Chain

1998-10-05

arxiv.org/abs/hep-th/9810034v1

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, LaTeX; expanded version of hep-th/9808012 ; to be published in Festschrift "Statistical Physics on the Eve of the Tw

Scientific paper

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 conjugation operator. We use these discrete
symmetries to help classify low-lying S^z=0 states in the critical regime, and
we give a direct computation of the S matrix.

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