Design of an Extremely Energy-Efficient Hardware Algorithm Using Adiabatic Superconductor Logic

We designed and implemented an extremely energy- efficient hardware algorithm using adiabatic quantum- flux-parametron (AQFP) logic based on a hardware- algorithm known as the Collatz conjecture. The circuit is composed of mergers, odd- even check stages, path controllers, processing units, terminating stages, together with a feedback loop. This design is at least 3 orders of magnitude better in energy efficiency compared to rapid-single-flux-quantum (RSFQ) designs and is superior to semiconductor-based designs even when including the power dissipation of a cryocooler.