Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Separation of Variables in the open XXX chain   We apply the Sklyanin method of separation of variables to the reflection
algebra underlying the open spin-1/2 XXX chain with non-diagonal boundary
fields. The spectral problem can be formulated in terms of a TQ-equation which
leads to the known Bethe equations for boundary parameters satisfying a
constraint. For generic boundary parameters we study the asymptotic behaviour
of the solutions of the TQ-equation.

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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: nlin
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The categories of this paper are: physics
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph