We conducted the first successful demonstration of an adiabatic microprocessor based on unshunted Josephson junction (JJ) devices manufactured using a Nb/AlO _x /Nb superconductor IC fabrication process. It is a hybrid of RISC and dataflow architectures operating on 4-b data words. We demonstrate register file R/W access, ALU execution, hardware stalling, and program branching performed at 100 kHz under the cryogenic temperature of 4.2 K. We also successfully demonstrated a high-speed breakout chip of the microprocessor execution units up to 2.5 GHz. We use a logic primitive called the adiabatic quantum-flux-parametron (AQFP), which has a switching energy of 1.4 zJ per JJ when driven by a four-phase 5-GHz sinusoidal ac-clock at 4.2 K. These demonstrations show that AQFP logic is capable of both processing and memory operations and that we have a path toward practical adiabatic computing operating at high-clock rates while dissipating very little energy.

中文翻译：

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MANA：使用1.4-zJ / op非并联超导体Josephson结器件的单块绝热集成架构微处理器

我们进行了首次成功的绝热微处理器演示，该绝热微处理器基于使用Nb / AlO _x制造的无分流约瑟夫森结（JJ）器件 / Nb超导体IC制造工艺。它是在4-b数据字上运行的RISC和数据流体系结构的混合体。我们演示了在4.2 K的低温下以100 kHz执行的寄存器文件R / W访问，ALU执行，硬件停顿和程序分支。我们还成功演示了高达2.5 GHz的微处理器执行单元的高速突破芯片。我们使用称为绝热量子通量参量电子（AQFP）的逻辑原语，当由4.2 K的四相5 GHz正弦交流电驱动时，其开关能量为1.4 JJ / JJ。这些演示表明AQFP逻辑既可以处理也可以进行内存操作，并且我们有一条通向实用绝热计算的道路，该绝热计算可以在高时钟频率下运行，而却消耗很少的能量。