Duality and quantum algebra symmetry of the A**(1)(N-1) open spin chain with diagonal boundary fields

Jul, 1998
26 pages
Published in:
  • Nucl.Phys.B 530 (1998) 641-664
e-Print:
Report number:
  • UMTG-207

Citations per year

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Abstract:
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'' symmetry which interchanges L and N - L. We exploit these symmetries to compute exact boundary S matrices in the regime with q real.
Note:
  • 27 pages, LaTeX, 1 LaTeX figure Report-no: UMTG-207
  • 11.55.Ds
  • 05.50.+q
  • 11.25.Hf
  • 11.30.Ly
  • 68.35.Rh
  • Boundary S -matrix
  • Boundary Yang-Baxter equation
  • Bethe ansatz
  • Integrable spin chain
  • Duality
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