Q-systems with boundary parameters

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Q-systems provide an efficient way of solving Bethe equations. We formulate here Q-systems for both the isotropic and anisotropic open Heisenberg quantum spin-1/2 chains with diagonal boundary magnetic fields. We check these Q-systems using novel discrete Wronskian-type formulas (relating the fundamental Q-function and its dual) that involve the boundary parameters.

Original languageEnglish (US)
Article number294001
JournalJournal of Physics A: Mathematical and Theoretical
Issue number29
StatePublished - Jul 24 2020


  • Bethe ansatz
  • Wronskian
  • boundary integrability
  • duality

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Modeling and Simulation
  • Mathematical Physics
  • Physics and Astronomy(all)


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