EAGER: Quantum Manufacturing: Building In-Operando Quantum Emitters and Simulators with Dynamically Tunable Moire Interfaces

EAGER：量子制造：使用动态可调莫尔接口构建操作中量子发射器和模拟器

• 批准号: 2240185
• 负责人: Arthur Barnard
• 金额: $ 30万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-03-01 至 2025-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2240185&HistoricalAwards=false
• 关键词: EAGER; Quantum; Manufacturing; Building; Operando

This EArly-concept Grants for Exploratory Research (EAGER) award supports the development and implementation of a research platform for use in quantum computing and quantum networking. It focuses on studying and realizing quantum bits (qubits) in a new materials platform: superlattices of atomically thin transition metal dichalcogenides. In these materials, when one layer is rotated relative to another and then stacked on top of it, a superlattice is formed, which can act as a platform for realizing a 2-dimensional array of quantum dots or qubits that could be used in quantum communication or for quantum simulations. These quantum dots are amenable to optical readout, however, a challenge this grant addresses is that the dots are closely spaced, making it hard to address them individually. This project realizes a platform that combines the ability to control the superlattice through rotation of interlayer twist angle with a near-field scanning optical probe to address individual quantum dots, demonstrating a uniquely scalable approach to synthesizing large arrays of qubits. This project serves an important role of training a diverse quantum workforce through its support of PhD trainees, through providing internship opportunities for participants in local NSF traineeship programs, and through opening opportunities for undergraduate involvement.To fulfill the promise of quantum-enabled computing and communications, it is imperative to manufacture high quality, on-demand single photon emitters that can be directly coupled to qubits. Beyond the coupling, these emitters should be amenable to efficient read-out to enable transfer of quantum information between disparate quantum nodes. Moiré superlattices of 2D semiconductors, such as transition metal dichalcogenide, feature unique capabilities beneficial for addressing these challenges. In a moiré superlattice, the periodic alignment and misalignment of crystal lattices produces an array of optically active quantum dots which host single emitters. These emitters exist in a planar crystal and do not rely on crystal defects, giving the advantage of scalability, electrical tunability, and optimized photon extraction efficiency. This project develops an approach to manufacture moiré quantum dot arrays by dynamic control of the layer twist-angle and efficiently address individual dots via near-field optical read-out. A successful demonstration of this quantum manufacturing platform positions moiré emitters as ideal systems for single photon emitters and optical quantum simulators.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项早期概念探索性研究资助 (EAGER) 奖项支持用于量子计算和量子网络的研究平台的开发和实施，重点是在新材料平台：原子超晶格中研究和实现量子比特（qubit）。在这些材料中，当一层相对于另一层旋转然后堆叠在其顶部时，就会形成超晶格，该超晶格可以作为实现超晶格的平台。可用于量子通信或量子模拟的二维量子点或量子位阵列这些量子点适合光学读出，但是，该资助要解决的一个挑战是这些点间隔很近，因此很难解决。该项目实现了一个平台，该平台将通过层间扭转角旋转控制超晶格的能力与近场扫描光学探针结合起来，以寻址单个量子点，展示了一种独特的可扩展方法。该项目通过对博士生的支持、为当地 NSF 培训项目的参与者提供实习机会以及为本科生提供参与机会，在培训多元化量子劳动力方面发挥着重要作用。为了实现量子计算和通信，必须制造高质量、按需的单光子发射器，这些发射器可以直接耦合到量子位，除了耦合之外，这些发射器还应该能够进行有效的读出，以实现量子比特的传输。二维半导体的莫尔超晶格（例如过渡金属二硫属化物）具有独特的功能，有助于解决这些挑战。在莫尔超晶格中，晶格的周期性排列和错位会产生一系列光学活性量子点。这些发射器存在于平面晶体中，不依赖于晶体缺陷，具有可扩展性、电可调谐性和优化的优点。该项目开发了一种通过动态控制层扭转角来制造莫尔量子点阵列的方法，并通过近场光学读出有效地寻址单个点。该量子制造平台的成功演示将莫尔发射器定位为：单光子发射器和光量子模拟器的理想系统。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。