Tridiagonal pairs of $q$-Racah type, the Bockting operator $\psi$, and   $L$-operators for $U_q(L({\mathfrak{sl}}_2))$
  We describe the Bockting operator $\psi$ for a tridiagonal pair of $q$-Racah type, in terms of a certain $L$-operator for the quantum loop algebra $U_q(L({\mathfrak {sl}}_2))$. 
Paul Terwilliger
math.QA