EFRI ACQUIRE: Scalable Quantum Communications with Error-Corrected Semiconductor Qubits

EFRI ACQUIRE：具有纠错半导体量子位的可扩展量子通信

• 批准号: 1641064
• 负责人: Dirk Englund
• 金额: $ 200万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-10-01 至 2021-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1641064&HistoricalAwards=false
• 关键词: EFRI; ACQUIRE; Scalable; Quantum; Communications

Abstract Title: Scalable Quantum Communications with Error-Corrected Semiconductor QubitsNontechnical Description:The world of quantum mechanics holds enormous potential for a new generation of applications that address unsolved problems in communications, computation, and precision measurements. Efforts are underway across the globe to develop such technologies in a range of physical systems, including atoms, superconductors, and atom-like emitters in solids. This NSF program will focus on semiconductor materials: specifically, it will use nitrogen vacancy (NV) and silicon vacancy (SiV) color centers in diamond, which recently emerged as leading platforms for solid-state quantum memories and single photon sources. After successful proof-of-principle demonstrations of many of the basic elements, a central challenge today is to devise new methods of device fabrication, component integration, and scalable fault-tolerant protocols to realize functional and scalable systems. These are the goals of this program, with a focus on semiconductor quantum devices for quantum secure communications. To this end, the program will develop a new generation of quantum light sources, and error-corrected quantum memories along with theoretical protocols with improved fault tolerance. These advances represent critical steps towards deployable and scalable quantum networks that have the potential to provide unhackable cryptography, new forms of quantum computing, precision measurement, and a host of other applications not possible on classical networks used today. Technical Description: This program will develop critical solid-state technology for quantum networks with applications including quantum communication, metrology, and computing. In Thrust 1, we will develop photostable and spectrally pure room-temperature single photon sources, based on color centers in diamond -- specifically, the silicon vacancy (SiV) and nitrogen vacancy (NV) color centers. Thrust 1 will also advance the quantum coherence times of these color centers, as well as their scalable integration in photonic integrated circuits. In Thrust 2, we will develop a new generation of error-corrected quantum nodes based on engineered multi-qubit registers and new quantum algorithms designed from the ground up for fault tolerance. In Thrust 3, we will demonstrate entanglement distribution of error-corrected quantum memories across a deployed dark fiber network in the Boston area. The nodes will consist of photonic integrated circuits for multiplexing multiple quantum registers. In contrast to previous quantum repeater protocols, our effort will focus on logical qubits in multi-qubit registers and new heralding concepts for scalable, fault-tolerant quantum networks. The research program will advance nanofabrication techniques, with a specific focus on quantum devices for quantum information processing. These advances will require improved understanding and control of semiconductor surfaces and doping techniques. In addition to the primary focus on quantum information devices, the advanced fabrication techniques and nanophotonic diamond devices promise breakthroughs in emerging applications such as nonlinear and high power optics, microelectronics, and applications in thermal management where diamond is used as a heat sink. The progress in the control of quantum emitters will also have a direct impact on biomedical and chemical sensing. A substantial portion of our program is focused on communicating the proposed research and development efforts to the public. To that end, our program includes extensive educational and outreach components to communicate the science to the general public.

摘要标题：非技术性描述：量子力学的世界为新一代应用提供了巨大的潜力，这些应用可以解决通信、计算和精密测量中尚未解决的问题。地球仪正在努力在一系列物理系统中开发这种技术，包括原子，超导体和固体中的原子状发射体。该NSF计划将专注于半导体材料：具体而言，它将使用金刚石中的氮空位（NV）和硅空位（SiV）色心，金刚石最近成为固态量子存储器和单光子源的领先平台。 在成功地证明了许多基本元素的原理之后，今天的一个核心挑战是设计新的设备制造方法，组件集成和可扩展的容错协议，以实现功能和可扩展的系统。这些是该计划的目标，重点是用于量子安全通信的半导体量子器件。为此，该计划将开发新一代量子光源，以及具有改进容错能力的理论协议的纠错量子存储器沿着。这些进展代表了可部署和可扩展的量子网络的关键步骤，这些网络有可能提供不可破解的密码学，新形式的量子计算，精确测量以及当今使用的经典网络无法实现的许多其他应用。 技术说明： 该计划将为量子网络开发关键的固态技术，其应用包括量子通信，计量学和计算。在推力1中，我们将开发光稳定和光谱纯的室温单光子源，基于金刚石中的色心-特别是硅空位（SiV）和氮空位（NV）色心。推力1还将推进这些色心的量子相干时间，以及它们在光子集成电路中的可扩展集成。在Thrust 2中，我们将开发新一代纠错量子节点，该节点基于工程多量子位寄存器和新的量子算法，这些算法从零开始设计用于容错。在Thrust 3中，我们将展示纠错量子存储器在波士顿地区部署的暗光纤网络中的纠缠分布。这些节点将由光子集成电路组成，用于多路复用多个量子寄存器。与以前的量子中继器协议相比，我们的工作将集中在多量子位寄存器中的逻辑量子位和可扩展的容错量子网络的新概念。 该研究计划将推进纳米纤维技术，特别关注量子信息处理的量子设备。这些进展将需要改进对半导体表面和掺杂技术的理解和控制。除了主要关注量子信息器件之外，先进的制造技术和纳米光子金刚石器件还有望在新兴应用中取得突破，例如非线性和高功率光学，微电子学以及金刚石用作散热器的热管理应用。量子发射体控制的进展也将对生物医学和化学传感产生直接影响。我们计划的很大一部分是集中在向公众宣传拟议的研究和开发工作。为此，我们的计划包括广泛的教育和推广部分，以向公众传播科学。

项目成果

Ancilla-Free Quantum Error Correction Codes for Quantum Metrology

• DOI: 10.1103/physrevlett.122.040502
• 发表时间: 2019-01-30
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Layden, David;Zhou, Sisi;Jiang, Liang
• 通讯作者: Jiang, Liang

Robustness-optimized quantum error correction

鲁棒性优化的量子纠错

• DOI: 10.1088/2058-9565/ab79b2
• 发表时间: 2020
• 期刊: Quantum Science and Technology
• 影响因子: 6.7
• 作者: Layden, David;Huang, Louisa Ruixue;Cappellaro, Paola
• 通讯作者: Cappellaro, Paola

Efficient Quantum Error Correction of Dephasing Induced by a Common Fluctuator

对常见波动器引起的移相的有效量子误差校正

• DOI: 10.1103/physrevlett.124.020504
• 发表时间: 2020
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: Layden, David;Chen, Mo;Cappellaro, Paola
• 通讯作者: Cappellaro, Paola

Development of hard masks for reactive ion beam angled etching of diamond

• DOI: 10.1364/oe.452826
• 发表时间: 2022-04-25
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Chia, Cleaven;Machielse, Bartholomeus;Loncar, Marko
• 通讯作者: Loncar, Marko

A polarization encoded photon-to-spin interface

• DOI: 10.1038/s41534-020-00337-3
• 发表时间: 2021-01-04
• 期刊: NPJ QUANTUM INFORMATION
• 影响因子: 7.6
• 作者: Chen, K. C.;Bersin, E.;Englund, D.
• 通讯作者: Englund, D.