[23p-D214-1~19] 11.5 Junction and circuit fabrication process, digital applications

[23p-D214-5] Design of Single Flux Quantum Circuits with Critical Current Density Process Lowered to 250 A/cm² toward Quantum Bit Control

〇Masamitsu Tanaka¹, Yoshihiro Kitagawa^2,3, Tetsuro Satoh^2,3, Tsuyoshi Yamamoto^2,3 (1.Nagoya Univ., 2.NEC, 3.AIST)

Keywords:superconductor, quantum bit, single flux quantum circuit

We have designed single-flux-quantum circuits with a critical current density process lowered to 250 A/cm² toward quantum bit control in dilution refrigerators. We will report expected operating frequency, estimated power consumption, and obtained results from the fabricated devices.