104 citations · 536 across the 35 of their papers we have counts for
Showing 2015 · math-phShow all
2 papers · 2 filters
math-ph2015★ 23 cited
Q-operators for the open Heisenberg spin chain
Rouven Frassek, Istvan M. Szecsenyi
We construct Q-operators for the open spin-1/2 XXX Heisenberg spin chain with diagonal boundary matrices. The Q-operators are defined as traces over an infinite-dimensional auxilia…
math-ph2015
Algebraic Bethe ansatz for Q-operators: The Heisenberg spin chain
Rouven Frassek
We diagonalize Q-operators for rational homogeneous sl(2)-invariant Heisenberg spin chains using the algebraic Bethe ansatz. After deriving the fundamental commutation relations re…