STRATEGIC PACKAGE: Superconductors-Based Quantum Technologies

战略方案：基于超导体的量子技术

• 批准号: EP/K01675X/1
• 负责人: Peter Ratoff
• 金额: $ 83.13万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FK01675X%2F1
• 关键词: STRATEGIC; PACKAGE; Superconductors; Based; Quantum

Quantum technologies (QT) is a truly interdisciplinary research area that aims to build novel functional devices based on quantum principles and thus showing unique characteristics when compared with conventional devices based on classical physics. The future feasibility of QT critically depends on one's ability to create, protect, manipulate and measure quantum states in physical, chemical or biological systems. In order to be in the quantum regime, a system must have energy levels that are well protected from all possible sources of decoherence. In general, decoherence has two major contributions - dephasing and energy relaxation - both inflicted by the environment. Superconducting materials are a natural choice for building solid-state quantum circuits, since superconductivity offers coherence. Superconductors have an energy region, in which only one energy level exists, the Fermi level, while all other energy levels are separated by the superconducting energy gap: the Cooper pairs of conducting electrons condense to this energy level, which is automatically protected from low-energy excitations because of the presence of the gap. This allows to prepare, to control, and to manipulate quantum states in superconductors-based nanostructures for the use in various devices whose operation is based upon quantum principles.A niche of superconductors-based QT, including the development and use of superconducting qubits, remains almost untamed by the UK researchers. According to the recent IoP Review, the UK plays a major role in several other areas of research on quantum computer technologies: studies of spin qubits (Oxford), semiconductor quantum dots (Sheffield), trapped ions (Oxford, ICL, Sussex, NPL), trapped atoms (Strathclyde, Oxford), and development of photon-based QT (Toshiba-Cambridge, Bristol, Sheffield, Oxford), however, "... the UK has not yet done much work on superconducting qubits...". These solid-state qubits were the first implemented experimentally by Nakamura, Pashkin and Tsai at NEC, and our ambition is to create, by relocation of Y. Pashkin to Lancaster, the new Centre of excellence which will broadly address the development and applications of superconductors-based QT, successfully competing against the existing renown QT groups, such as those at Yale (USA), CEA Saclay (France), TUDelft (the Netherlands), and Q-Station at UCSB (USA). The new center of excellence in experimental research in superconductors-based QT (SQT) will study fundamental properties of a wide range of superconductors-based nanostructures aiming to develop their applications in quantum metrology, nanoelectromechanics and sensing applications, and - in the long term - quantum information processing.

量子技术（QT）是一个真正的跨学科研究领域，旨在基于量子原理构建新型功能设备，因此与基于经典物理学的常规设备相比，在量子原理上构建了独特的特征。 QT的未来可行性严重取决于一个人在物理，化学或生物系统中创建，保护，操纵和测量量子状态的能力。为了处于量子状态，系统必须具有能够得到很好保护的能量水平，以防止所有可能的破坏来源。总的来说，消毒性具有两个主要贡献 - 消除和能量放松 - 均由环境造成。超导材料是构建固态量子电路的自然选择，因为超导性具有连贯性。超导体具有一个能量区域，其中仅存在一个能级，即费米水平，而所有其他能级水平都被超导能量差距分开：由于存在差距的存在，因此将电子浓缩到该能量水平的库珀对导电到该能量水平的浓度置于该能级。这样可以准备，控制和操纵基于超导体的纳米结构中的量子状态，以在各种设备中使用，其操作基于量子原理。基于超导体的QT的一个利基，包括英国研究人员几乎不遵守超导量子的开发和使用。根据最近的IOP综述，英国在量子计算机技术的其他几个研究领域中起着重要作用：旋转量子（牛津）的研究（牛津），半导体量子点（Sheffield），被困离子（牛津，ICL，ICL，Sussex，NPL），原子（Strathclyde，牛津，牛津）和基于Photon shefield shefield（shefield of photon shefield of phot shefield）（但是，牛津），“ ...英国尚未在超导Qubits上做很多工作……”。 These solid-state qubits were the first implemented experimentally by Nakamura, Pashkin and Tsai at NEC, and our ambition is to create, by relocation of Y. Pashkin to Lancaster, the new Centre of excellence which will broadly address the development and applications of superconductors-based QT, successfully competing against the existing renown QT groups, such as those at Yale (USA), CEA Saclay (France), TUDelft （荷兰）和UCSB（美国）的Q-Station。基于超导体的QT（SQT）实验研究的新的卓越中心将研究广泛的基于超导体的纳米结构的基本特性，旨在开发其在量子计量，纳米机电和感应应用中以及 - 从长期 - 量子信息处理中开发应用程序。

项目成果

Nanoelectronic primary thermometry below 4 mK.

• DOI: 10.1038/ncomms10455
• 发表时间: 2016-01-27
• 期刊: Nature communications
• 影响因子: 16.6
• 作者: Bradley DI;George RE;Gunnarsson D;Haley RP;Heikkinen H;Pashkin YA;Penttilä J;Prance JR;Prunnila M;Roschier L;Sarsby M
• 通讯作者: Sarsby M

Controlling Single Microwave Photons: A New Frontier in Microwave Engineering

控制单个微波光子：微波工程的新前沿

• 发表时间: 2017
• 期刊: MICROWAVE JOURNAL
• 影响因子: 0.4
• 作者: Lindstrom Tobias

Thermal Transport in Nanoelectronic Devices Cooled by On-Chip Magnetic Refrigeration.

片上磁制冷冷却的纳米电子器件中的热传输。

• DOI: 10.1103/physrevlett.131.077001
• 发表时间: 2023
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Autti S

On-chip magnetic cooling of a nanoelectronic device.

• DOI: 10.1038/srep45566
• 发表时间: 2017-04-04
• 期刊: Scientific reports
• 影响因子: 4.6
• 作者: Bradley DI;Guénault AM;Gunnarsson D;Haley RP;Holt S;Jones AT;Pashkin YA;Penttilä J;Prance JR;Prunnila M;Roschier L
• 通讯作者: Roschier L

Measurement and control of single-photon microwave radiation on chip

芯片上单光子微波辐射的测量与控制

• DOI: 10.1109/cpem.2014.6898390
• 发表时间: 2014
• 作者: Manninen A