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One dimensional quantum systems which can either be multiple discrete spin particles or their continuum limit.

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I am studying L. Fadeev's "How Algebraic Bethe Ansatz works for integrable model". He takes Heisenberg $XXX_{1/2}$ model as an example. After obtaining the Bethe Ansatz Equations (BAE) for the roots { …
asked Jan 27 '18 by Erkkabfjip