Multi-excitation adiabatic quantum-flux-parametron

被引：6

作者：

Fang, Kun ^{[1
]}

Takeuchi, Naoki ^{[2
,3
]}

Ando, Takumi ^{[1
]}

Yamanashi, Yuki ^{[1
,2
]}

Yoshikawa, Nobuyuki ^{[1
,2
]}

机构：

[1] Yokohama Natl Univ, Dept Elect & Comp Engn, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan

[2] Yokohama Natl Univ, Inst Adv Sci, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan

[3] Japan Sci & Technol Agcy, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2017年 / 121卷 / 14期

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

CIRCUITS; INDUCTANCE; CONVERTERS; DESIGN; LOGIC;

D O I：

10.1063/1.4979856

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Adiabatic quantum-flux-parametron (AQFP) circuits are very low-power due to zero static power consumption and adiabatic switching operations. However, compared to other superconducting circuits, such as rapid single-flux-quantum logic, the operation frequency is relatively low and the latency is relatively large. In this work, we propose multi-excitation AQFP (ME-AQFP) circuits for high-speed and low-latency operations. In ME-AQFP, the intrinsic periodicity of the potential energy of a Josephson device with respect to applied magnetic fluxes is utilized to multiply operation frequencies and reduce latency. In a numerical simulation, we demonstrated an ME-AQFP AND gate, which operates at 10 GHz or 20 GHz with 5-GHz excitation currents. We also evaluated the energy efficiency of ME-AQFP circuits. In an experiment, we successfully demonstrated an ME-AQFP XOR gate and an ME-AQFP full adder. Published by AIP Publishing.

引用

页数：6