Completeness of the Bethe Ansatz solution for the rational, spin-1/2 Richardson–Gaudin system
نویسنده
چکیده
Establishing the completeness of a Bethe Ansatz solution for an exactly solved model is a perennial challenge, which is typically approached on a case by case basis. For the rational, spin-1/2 Richardson– Gaudin system it will be shown that completeness can be deduced through a direct approach. This method does not depend on knowledge of the distribution of Bethe roots, such as a string hypothesis, and is generalisable to a wider class of systems.
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