Droplet Excitations for the Spin-1/2 XXZ Chain with Kink Boundary Conditions
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Droplet Excitations for the Spin-1/2 XXZ Chain with Kink Boundary Conditions

  • Author(s): Nachtergaele, Bruno
  • Spitzer, Wolfgang
  • Starr, Shannon
  • et al.

Published Web Location

https://arxiv.org/pdf/math-ph/0508049.pdf
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Abstract

We give a precise definition for excitations consisting of a droplet of size n in the XXZ chain with various choices of boundary conditions, including kink boundary conditions and prove that, for each n, the droplet energies converge to a boundary condition independent value in the thermodynamic limit. We rigorously compute an explicit formula for this limiting value using the Bethe ansatz.

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