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

[23p-D214-2] Design of Josephson Parametric Oscillator with superconducting 3D-structure

〇Akira Miyata^1,2, Kunihiko Ishihara^1,2, Takanori Nishi^1,2, Nanba Kenji¹, Ayami Yamaguchi¹, Tetsuro Sato^1,2, Ayuka Morioka^1,2, Tsuyoshi Yamamoto^1,2, Katsumi Kikuchi^1,2 (1.NEC, 2.AIST)

Keywords:superconducting, quantum bit, Josephson parametric oscillator

"Quantum annealing machine" is expected as a breakthrough for the high-speed solution of the combinatorial optimization problem. Quantum bits used in quantum annealing machine include flux qubits and Josephson parametric oscillators (JPO) with excellent noise immunity.
In this talk, we report on the design of a JPO that realizes wiring by electromagnetic field coupling composed of superconducting 3D mounting, which is being developed to achieve both coherence and integration of JPOs.