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Dual Separated Variables and Scalar Products

Research output: Contribution to journalArticlepeer-review

Nikolay Gromov, Fedor Levkovich-Maslyuk, Paul Ryan, Dmytro Volin

Original languageEnglish
Article number135494
Number of pages5
JournalPhys. Rev. B
Early online date19 May 2020
Accepted/In press14 May 2020
E-pub ahead of print19 May 2020
Published10 Jul 2020


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    PLB_D_19_01827_R1_accepted_5_11_text_only.pdf, 421 KB, application/pdf

    Uploaded date:15 May 2020

    Version:Accepted author manuscript

King's Authors


Separation of variables (SoV) is an extremely efficient and elegant technique for analysing physical systems but its application to integrable spin chains was limited until recently to the simplest su(2) cases. In this paper we continue developing the SoV program for higher-rank spin chains and demonstrate how to derive the measure for the su(3) case. Our results are a natural consequence of factorisability of the wave function and functional orthogonality relations following from the interplay between Baxter equations for Q-functions and their dual.

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