2026/07/01 by A. Liashyk, S. Pakuliak, E. Ragoucy · 1 voice
Physics and Astronomy · #nlin.SI #hep-th #math-ph
Off-shell Bethe vectors for a generic \fg invariant integrable model are constructed through the currents of the Yangian doubles of the classical series. These off-shell Bethe vectors are shown to satisfy the defining properties which were used in \citeLPR-RR to prove the rectangular recurrence relations and verify the eigenvalue property of the on-shell Bethe vectors in \ggo-invariant integrable models.