Quantum boundary currents for nonsimply-laced Toda theories

S. Penati, A. Refolli, D. Zanon
1996 Physics Letters B  
We study the quantum integrability of nonsimply--laced affine Toda theories defined on the half--plane and explicitly construct the first nontrivial higher--spin charges in specific examples. We find that, in contradistinction to the classical case, addition of total derivative terms to the "bulk" current plays a relevant role for the quantum boundary conservation.
doi:10.1016/0370-2693(95)01515-9 fatcat:7fmhbo3wwrhcze2cpbc7ixxopq