Nested algebraic Bethe ansatz for open spin chains with even twisted Yangian symmetry

Allan Gerrard, Niall MacKay, Vidas Regelskis

We present a nested algebraic Bethe ansatz for a one dimensional open spin chain whose boundary quantum spaces are irreducible ${\mathfrak{so}}_{2n}$- or ${\mathfrak{sp}}_{2n}$-represe…