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Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions
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Off-diagonal Bethe ansatz solution of the XXX spin-chain with arbitrary boundary conditions
classification
math-ph
cond-mat.stat-mechhep-thmath.MP
keywords
ansatzbethearbitraryboundaryoff-diagonalrelationassociatedauthors
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With the off-diagonal Bethe ansatz method proposed recently by the present authors, we exactly diagonalize the $XXX$ spin chain with arbitrary boundary fields. By constructing a functional relation between the eigenvalues of the transfer matrix and the quantum determinant, the associated $T-Q$ relation and the Bethe ansatz equations are derived.
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