Reversible Computing Using Adiabatic Superconductor Logic

Abstract

AbstractThe adiabatic quantum-flux-parametron (AQFP), which is adiabatic superconductor logic, is well suitable to realize reversible computing, because of the extremely high energy efficiency. In AQFP logic, dynamic energy dissipation can be significantly reduced by varying potential energy adiabatically during a switching event, which prevents non-adiabatic energy dissipation. In this paper, we report recent research results toward reversible computing using AQFP logic. First, we show experimental demonstrations of adiabatic switching operations of an AQFP gate. Then we discuss the minimum energy dissipation for an adiabatic switching operation using numerical analyses. Finally, we report reversible computing using AQFP gates and discuss the minimum energy dissipation required for logic operations using logically and physically reversible gates.Keywordsreversible computingphysical reversibilitysuperconductor logicadiabatic deviceQFP