The Bethe Ansatz


This is a model for spin-\(1/2\) fermions with an ultralocal contact interaction. The (first-quantized) Hamiltonian is precisely the same as the one of Lieb-Liniger. It was solved in 1967.Gaudin.PLA.24 and further in 1967.Yang.PRL.19.

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Author: Jean-Sébastien Caux

Created: 2024-01-18 Thu 14:24