Full operation of a switching node circuit for superconducting ring network

Abstract

We report on the experimental full operation of a processor interface node circuit (an RIF circuit), which is the most important component of our proposed superconducting ring network. This circuit was designed for the prototype three-node ring network system. At over 1 GHz, we successfully operated the packet-validity-checking and validity-setting parts, which include the critical path of the RIF circuit. Our results strongly suggest that GHz-level operation of the RIF circuit is attainable.