[9p-F212-1~16] KS.2 Quantum Information Engineering Group

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[9p-F212-9] Self-Shunted Superconducting Flux Qubits with Ferromagnetic π-Junctions

〇Daiki Kurihara¹, Koki Honda¹, Tokunoshin Uchida¹, Hiroki Kutsuma¹, Hirotaka Terai², Taro Yamashita¹ (1.Tohoku Univ., 2.NICT)

Keywords:

superconducting qubit,pi-junction,self-shunted superconducting flux qubit

π-junction qubits, which eliminate the need for external flux bias by introducing ferromagnetic π-junctions into highly anharmonic flux qubits, are promising candidates for large-scale integration owing to their potential to suppress inter-qubit crosstalk. In this study, we fabricated π-junction qubits based on self-shunted superconducting flux qubits (SSFQs) together with two-dimensional coplanar-waveguide readout resonators on the same chip and evaluated their characteristics.