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APS -APS March Meeting 2017 - Event - Superconducting Qubit with Integrated Single Flux Quantum Controller Part II: Experimental Characterization

机译:APS -APS 2017年3月会议-活动-具有集成单通量量子控制器的超导量子位,第二部分:实验特性

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We describe the characterization of a single flux quantum (SFQ) pulse generator cofabricated with a superconducting quantum circuit on a single chip. Resonant trains of SFQ pulses are used to induce coherent qubit rotations on the Bloch sphere. We describe the SFQ drive characteristics of the qubit at the fundamental transition frequency and at subharmonics ($omega_{01}, n=2,3,4,dots$). We address the issue of quasiparticle poisoning due to the proximal SFQ pulse generator, and we characterize the fidelity of SFQ-based rotations using randomized benchmarking.
机译:我们描述了与单芯片上的超导量子电路一起制造的单通量量子(SFQ)脉冲发生器的特性。 SFQ脉冲的谐振序列用于在Bloch球上引起相干量子比特旋转。我们描述了在基本跃迁频率和次谐波($ omega_ {01} / n,n = 2,3,4,dots $)上qubit的SFQ驱动特性。我们解决了由于近端SFQ脉冲发生器导致的准粒子中毒的问题,并使用随机基准测试来表征基于SFQ的旋转的保真度。

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