Basic protocols in quantum reinforcement learning with superconducting circuits

The author wishes to acknowledge discussions with U. Alvarez-Rodriguez, M. Sanz, and E. Solano, and support from Ramon y Cajal Grant RYC-2012-11391, Spanish MINECO/FEDER FIS2015-69983-P, Basque Government IT986-16, and UPV/EHU UFI 11/55.