Superconducting Gatemon Quantum Computing Enabled by CryoElectronics

CryoElectronics 支持的超导 Gatemon 量子计算

• 批准号: EP/X025152/1
• 负责人: Martin Weides
• 金额: $ 126.06万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX025152%2F1
• 关键词: Superconducting; Gatemon; Quantum; Computing; Enabled; Superconducting; Gatemon; Quantum; Computing; Enabled

Quantum processors and quantum computers employ principles of quantum mechanics to analyse, process, store and protect information. Therefore, quantum processing and computing, operating using superposition, will revolutionise our conventional way of data processing and computing in speed, power, and security, which will affect our lives, economy, and security in national and international quantities. Superconducting quantum processors on large scale with a number of quantum bits, rather than classical bits, of more than 500, are one of the most promising platforms to realise quantum computers. The quantum state of these processors, commonly known as coherence in superconducting transmons, is fragile to weak environmental perturbations such as imperfection in materials, current noise in the quantum chip, or heat load associated with the transmon qubits control and read-out electronics. In this three years project, our team together with our project partners aim at:(i) developing a new type of qubits that are controlled and addressed by the gate voltage, rather than conventional transmons that are operating based on current flux control lines. Our proposed qubit is known as gatemon and we aim to fabricate them on large scale in a low-loss silicon chip. Each individual gatemon will be shunted by a parallel plate capacitor in a single quantum chip. Our strategy to integrate our gatemons on large scale is to use low-loss two-dimensional materials to build the shunted capacitors. Such technology would allow us to miniaturise the footprint of our gatemon quantum chips by > 2000 times smaller. The gatemon chips will be operated at the 10mK stage of a dilution refrigerator. All fabrication and measurements will take place at the University of Glasgow James Watt Nanofabrication Centre (JWNC), and at the Centre for Quantum Technology. (ii) developing a proof of concept modern electronics that can work at low temperatures, known as cryogenic electronics based on CMOS electronics. The chips will be mounted at the 3K stage of the dilution refrigerator to control and readout the gatemon quantum chips. (iii) training and educating a diverse cohort of next-generation UK quantum technology students, academics, and engineers promoting capability in a research field with significant national and international economic potential and interests but with significant employment shortage. The outputs of the SEQUENCE project will deliver a major breakthrough to quantum computing science and technology, advance low-power and reliable devices for cryoelectronic applications, and allow the technological relevance of our work to be placed on a sound footing in the industrial context.

量子处理器和量子计算机采用量子力学原理来分析，处理，存储和保护信息。因此，使用叠加的量子处理和计算将彻底改变我们在速度，权力和安全性方面的数据处理和计算方式，这将影响我们的国家和国际数量的生活，经济和安全。超过500多个量子位的超级传导量子处理器是实现量子计算机的最有前途的平台之一。这些处理器的量子状态，通常称为超导通道中的相干性，在弱环境扰动中脆弱，例如材料的不完美，量子芯片中的当前噪声或与Transmon Qubits Control和读出的电子产品相关的热载荷。在这个三年的项目中，我们的团队与项目合作伙伴一起旨在：（i）开发一种由门电压控制和解决的新量子，而不是基于当前通量控制线操作的常规传输。我们提出的量子被称为Gatemon，我们的目标是在低损坏的硅芯片中大规模制造它们。每个单独的gatemon将被单个量子芯片中的平行板电容器分流。我们大规模整合Gatemons的策略是使用低损坏的二维材料来构建分流的电容器。这样的技术将使我们能够将gatemon量子芯片的占地面积小于2000倍。 Gatemon芯片将在稀释冰箱的10MK阶段进行操作。所有制造和测量都将在格拉斯哥大学James Watt Nanofrication Center（JWNC）和量子技术中心进行。 （ii）开发一种概念验证现代电子产品，该概念可以在低温下（基于CMOS电子产品）工作，称为低温电子。这些芯片将安装在稀释冰箱的3K阶段，以控制和读取Gatemon量子芯片。 （iii）在具有巨大的国家和国际经济潜力和利益的研究领域，培训和教育各种各样的英国量子技术学生，学者和工程师，促进能力，但就业不足。序列项目的产出将为量子计算科学和技术，推动低功率和可靠的设备用于冷冻电子应用，并允许我们的作品在工业环境中置于合理的基础上的技术相关性。