Strategies for reducing flux noise in the D-Wave quantum computer

D-Wave Systems Inc.是一家总部位于不列颠哥伦比亚省伯纳比的公司，目前在开发 在可调耦合超导量子干涉器件(SQUID)网络上实施量子退火(QA)的量子计算技术。它的结果受到了凝聚态物质和量子计算界以及大众媒体的广泛关注(D-Wave最近登上了《时代》杂志的封面)。 磁通噪声对D波量子计算机的运行产生了重要的限制，导致了定标误差。本研究项目的目标是根据SQUID的几何形状和材料组成找到最优的设计策略，使D-Wave量子比特中的磁通噪声最小化。 该项目预计将对D-Wave QA处理器的性能产生直接影响。它还提供了一个独特的机会，可以在一个将基础研究(相互作用自旋系统中的磁化动力学和非平衡效应)与一家加拿大公司正在开发的令人兴奋的新技术相结合的领域培训高素质的人员。

D-Wave systems Inc., a company based in Burnaby, B.C., is currently leading the way in the development of quantum computing technology that implements quantum annealing (QA) on networks of tunably coupled superconducting quantum interference devices (SQUIDs). Its results are receiving widespread attention from the condensed matter and quantum computing communities as well as from the popular press (D-Wave was recently featured at the cover of Time magazine). Flux noise produces important limitation for the operation of the D-Wave quantum computer, leading to calibration errors. The objective of this research project is to find optimal design strategies based on SQUID geometry and material composition that will minimize flux noise in D-Wave's quantum bits. The project is expected to have direct impact on the performance of the D-Wave QA processors. It also presents a unique opportunity to train highly qualified personnel in an area that integrates fundamental research (magnetization dynamics and non-equilibrium effects in interacting spin systems) with exciting new technology being developed by a Canadian company.