New non-diagonal solutions to the a (1) n boundary Yang-Baxter equation
Abstract
Extending previous work on
a
(1)
2
, we present a set of reflection matrices, which are explicit solutions to the
a
(1)
n
boundary Yang-Baxter equation. Unlike solutions found previously these are multiplet-changing
K
-matrices, and could therefore be used as soliton reflection matrices for affine Toda field theories on the half-line.