A Groenewold-Moyal twist deforms an integrable sl(2) spin-chain whose spectrum is computed perturbatively via the Baxter equation and matched at order J^{-3} to a non-local charge of a deformed BMN string in AdS.
Jordan blocks and the Bethe ansatz III: Class 5 model and its symmetries
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Constructs a Yang-Baxter generator from biorthogonal eigenvectors satisfying Temperley-Lieb relations for pseudo-Hermitian impurities, yielding R-matrices and Bethe equations, with Gaudin matrix defectiveness diagnosing exceptional points.
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Groenewold-Moyal twists, integrable spin-chains and AdS/CFT
A Groenewold-Moyal twist deforms an integrable sl(2) spin-chain whose spectrum is computed perturbatively via the Baxter equation and matched at order J^{-3} to a non-local charge of a deformed BMN string in AdS.
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Yang-Baxter Integrability and Exceptional-Point Structure in Pseudo-Hermitian Quantum Impurity Systems
Constructs a Yang-Baxter generator from biorthogonal eigenvectors satisfying Temperley-Lieb relations for pseudo-Hermitian impurities, yielding R-matrices and Bethe equations, with Gaudin matrix defectiveness diagnosing exceptional points.