{{Main|Quantum flux parametron}}Adiabatic Quantum flux parametron (AQFP) logic was developed for energy-efficient operation and is powered by alternating current.<ref name="Takeuchi2013">Takeuchi N, Ozawa D, Yamanashi Y and Yoshikawa N (2013). [http://iopscience.iop.org/0953-2048/26/3/035010 "An adiabatic quantum flux parametron as an ultra-low-power logic device"], Supercond. Sci. Technol. 26 035010.</ref><ref name="Takeuchi2015">Takeuchi N, Yamanashi Y and Yoshikawa N (2015). [http://iopscience.iop.org/0953-2048/28/1/015003/ "Energy efficiency of adiabatic superconductor logic"], Supercond. Sci. Technol. 28 015003, Jan. 2015.</ref>
On January 13, 202012021, it was announced that a 2.5 GHz prototype AQFP-based processor called MANA (Monolithic Adiabatic iNtegration Architecture) had achieved an energy efficiency that was 80 times that of traditional semiconductor processors, even accounting for the cooling.<ref name="MANA">{{cite web|url=https://spectrum.ieee.org/tech-talk/computing/hardware/new-superconductor-microprocessor-yields-a-substantial-boost-in-efficiency|title=Superconducting Microprocessors? Turns Out They're Ultra-Efficient|date=2021-01-13|access-date=2021-05-25|quote=The 2.5 GHz prototype uses 80 times less energy than its semiconductor counterpart, even accounting for cooling … While adiabatic semiconductor microprocessors exist, the new microprocessor prototype, called MANA (Monolithic Adiabatic iNtegration Architecture), is the world’s first adiabatic superconductor microprocessor. It’s composed of superconducting niobium and relies on hardware components called adiabatic quantum-flux-parametrons (AQFPs). Each AQFP is composed of a few fast-acting Josephson junction switches, which require very little energy to support superconductor electronics. The MANA microprocessor consists of more than 20,000 Josephson junctions (or more than 10,000 AQFPs) in total.}}</ref>
