[15a-K406-1~11] KS.2 Quantum Information Engineering Group

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[15a-K406-7] Wideband and Compact Josephson Parametric Amplifier Based on Lumped Elements

〇Yoshiro Urade¹, Takahiro Yamada¹, Yuki Nakashima¹, Shuichi Nagasawa¹, Fumihiro China¹, Go Fujii¹, Kunihiro Inomata¹ (1.AIST)

Keywords:

Josephson parametric amplifier,superconducting qubit,quantum computer

Josephson parametric amplifier (JPA) is a low-noise microwave amplifier that operates at ultra-low temperatures. Miniaturization of JPAs is required to integrate superconducting qubits further. To this end, we propose to realize an impedance-matched JPA using only lumped circuit elements. In this presentation, we will discuss the circuit design of the JPA and provide experimental results of the amplifier’s characteristics at ultra-low temperatures.