Abstract
We construct a Qoperator for the open XXZ Heisenberg quantum spin chain with diagonal boundary conditions and give a rigorous derivation of Baxter's TQ relation. Key roles in the theory are played by a particular infinitedimensional solution of the reflection equation and by short exact sequences of intertwiners of the standard Borel subalgebras of The resulting Bethe equations are the same as those arising from Sklyanin's algebraic Bethe ansatz.
Original language  English 

Article number  245205 
Journal  Journal of Physics A: Mathematical and General 
Volume  53 
Issue number  24 
Early online date  27 May 2020 
DOIs  
Publication status  Published  19 Jun 2020 
ASJC Scopus subject areas
 Statistical and Nonlinear Physics
 Statistics and Probability
 Modelling and Simulation
 Mathematical Physics
 Physics and Astronomy(all)
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Robert Andrew Weston
 School of Mathematical & Computer Sciences, Mathematics  Professor
 School of Mathematical & Computer Sciences  Professor
Person: Academic (Research & Teaching)