Compilation & Circuit Layout Optimisation For Superconducting Quantum Processor

汇编

• 批准号: EP/R044538/1
• 负责人: Peter Leek
• 金额: $ 18.68万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FR044538%2F1
• 关键词: Compilation; Circuit; Layout; Optimisation; Superconducting

Oxford Quantum Circuits Limited (OQC), established in June 2017, are developing quantum computing processors based on superconducting circuits. A fundamental business question for OQC is what applications (quantum algorithms) are best suited for their technology, and how to most efficiently realise first generation processors that will be capable of running these applications, and hence generate sales. This project addresses this challenge from two angles; development by Cambridge Quantum Computing Limited (CQC) of a quantum compiler dedicated to the OQC hardware architecture, and prototype development and assessment of circuit layouts with differing connectivity maps. These two directions will be combined with assessment of mapping of quantum algorithms onto the OQC architecture to produce clear direction for OQC R&D in the next phase of its development.Quantum algorithms are typically given in a high level mathematical language, and are not designed with particular hardware architectures in mind. This makes it challenging for OQC and its customers to realise the full potential of the technology. This project seeks to address this problem by demonstrating software that efficiently compiles quantum algorithms onto theOQC architecture. The software module will act as an interface between users and the hardware; enabling the technology to run quantum programs. Using IP developed by CQC will facilitate getting the most out of the available hardware.Understanding how quantum programs are mapped to the architecture will also inform the design decisions for the next generation device built by OQC. The project will demonstrate the feasibility of these decisions by prototyping the key concept in hardware. The new software plus prototyped hardware will demonstrate a step change in the capabilities of the next generation quantum computer built by OQC.

Oxford Quantum Circuits Limited（OQC）成立于2017年6月，正在开发基于超导电路的量子计算处理器。OQC的一个基本业务问题是什么应用程序（量子算法）最适合他们的技术，以及如何最有效地实现能够运行这些应用程序的第一代处理器，从而产生销售。该项目从两个角度解决了这一挑战;剑桥量子计算有限公司（CQC）开发了一个专用于OQC硬件架构的量子编译器，并对具有不同连接图的电路布局进行了原型开发和评估。这两个方向将与量子算法到OQC架构的映射评估相结合，为OQC下一阶段的研发工作提供明确的方向。量子算法通常是以高级数学语言给出的，并不是针对特定的硬件架构设计的。这使得OQC及其客户在实现该技术的全部潜力方面面临挑战。该项目旨在通过演示将量子算法有效编译到OQC架构上的软件来解决这个问题。软件模块将作为用户和硬件之间的接口，使该技术能够运行量子程序。使用CQC开发的IP将有助于充分利用可用的硬件。了解量子程序如何映射到架构也将为OQC构建的下一代设备的设计决策提供信息。该项目将通过对硬件中的关键概念进行原型设计来证明这些决策的可行性。新的软件加上原型硬件将展示OQC构建的下一代量子计算机功能的一步变化。

项目成果

Calibration of a Cross-Resonance Two-Qubit Gate Between Directly Coupled Transmons

• DOI: 10.1103/physrevapplied.12.064013
• 发表时间: 2019-05
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: A. Patterson;J. Rahamim;T. Tsunoda;P. Spring;S. Jebari;K. Ratter;M. Mergenthaler;G. Tancredi;B. Vlastakis;M. Esposito;P. Leek