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Exact solution for two $\delta$-interacting bosons on a ring in the presence of a δ-barrier: Asymmetric Bethe Ansatz for spatially odd states

Maxim Olshanii, Mathias Albert, Gianni Aupetit-Diallo, Patrizia Vignolo, Steven G. Jackson
SciPost Phys. Core 8, 083 (2025)
https://scipost.org/SciPostPhysCore.8.4.083

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