Boundary remnant of Yangian symmetry and the structure of rational reflection matrices - INSPIRE

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Boundary remnant of Yangian symmetry and the structure of rational reflection matrices

Sep, 2001

13 pages

Published in:

Phys.Lett.B 522 (2001) 335-344,
Phys.Lett.B 524 (2002) 401-401 (erratum)

e-Print:

hep-th/0109115 [hep-th]

DOI:

10.1016/S0370-2693(01)01275-8,
10.1016/S0370-2693(01)01408-3 (erratum)

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Abstract:

For the classical principal chiral model with boundary, we give the subset of the Yangian charges which remains conserved under certain integrable boundary conditions, and extract them from the monodromy matrix. Quantized versions of these charges are used to deduce the structure of rational solutions of the reflection equation, analogous to the 'tensor product graph' for solutions of the Yang-Baxter equation. We give a variety of such solutions, including some for reflection from non-trivial boundary states, for the SU(N) case, and confirm these by constructing them by fusion from the basic solutions.

Note:

13 pages. Role of U(1) factor corrected in v2: results are unchanged Subj-class: High Energy Physics - Theory: Quantum Algebra: Exactly Solvable and Integrable Systems

model: chiral
charge: conservation law
Yang-Baxter equation
boundary condition
monodromy
fusion

References(12)

Figures(0)

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