極低温における断熱量子磁束パラメトロン回路のビット誤り率シミュレーション

Bit error rate simulation of adiabatic quantum flux parametron circuits in cryogenic temperatures


永井 亜暉, 吉川 信行 (横浜国大)


Abstract:In the information society nowadays, semiconductor integrated circuits play a crucial role. However, in recent years challenges such as the limits in integration and increased power consumption have been revealed. To address these limitations, we are conducting research on superconducting circuits known for their high-speed operation and low power consumption. In this study, we focused on the adiabatic quantum flux parametron (AQFP) circuit, which is recognized as the most energy-efficient super conducting logic circuit. We envision AQFP circuits operating in a cryogenic environment. Therefore, we evaluated the bit error rate by simulation in cryogenic temperatures well below 4.2 K, investigated the cause of errors, and proposed the theoretical equation.