QuSeC-TAQS: Development of Quantum Sensors with Helium-4 using 2D Materials

QuSeC-TAQS：使用 2D 材料开发 Helium-4 量子传感器

• 批准号: 2326801
• 负责人: Benjamin King
• 金额: $ 200万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2027-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2326801&HistoricalAwards=false
• 关键词: QuSeC; TAQS; Development; Quantum; Sensors

This project combines two exotic materials, superfluid helium and nanoporous two-dimensional polymers, to develop a sensor device that takes advantage of the strange macroscopic quantum behavior of liquid helium at temperatures near absolute zero. A nanoporous membrane will provide a weak link between two reservoirs of superfluid helium, and enable a quantum coupling known as a Josephson junction. The resulting transport of superfluid between reservoirs is predicted to have unusual properties described by quantum mechanics. Quantum sensors based on this architecture will allow measurement of phenomena that is undetectable to conventional sensors, from minute fluctuations in the Earth’s rotation to the fingerprints of dark matter. The technical applications for of this quantum sensor are widespread. They are found in disciplines spanning geodesy (GPS and geological exploration), gravitation and general relativity (dark matter and cosmology), metrology (quantum standards for physical quantities), and quantum information (quantum computing). Exploring Josephson junctions for superfluid helium can enable new capabilities that are useful in several scientific disciplines. The key hypothesis is that nanoporous two-dimensional crystal polymer membranes will enable superfluid helium-4 Josephson junction structures. This project is designed to demonstrate superfluid Josephson junctions and explore how to control and measure the quantum transport of superfluid through the restricted geometry of a nanoporous membrane. The fundamental noise properties of the junctions will be studied in order to understand the ultimate performance of matter wave interference devices, gyroscopes, quantum limited amplifiers, quantum standards, and qubit structures based on this effect. As part of these experiments, this project will examine fundamental issues in condensed matter physics, quantum materials, materials science, and quantum engineering. This project will lay a foundation for new quantum devices such as superfluid SQUIDs, acoustic amplifiers, quantum standards, and qubits.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.

该项目结合了两种奇异的材料--超流氦和纳米多孔二维聚合物，以开发一种传感器设备，该设备利用液氦在绝对零度附近奇怪的宏观量子行为。纳米多孔膜将在两个超流氦储存库之间提供弱连接，并实现被称为约瑟夫森结的量子耦合。由此产生的超流体在储集层之间的传输被预测具有量子力学描述的不寻常的性质。基于这种结构的量子传感器将允许测量常规传感器无法检测到的现象，从地球自转的微小波动到暗物质的指纹。这种量子传感器的技术应用非常广泛。它们存在于测地学(GPS和地质勘探)、引力和广义相对论(暗物质和宇宙学)、计量学(物理量的量子标准)和量子信息(量子计算)等学科中。探索超流氦的约瑟夫森结可以实现在几个科学学科中有用的新能力。关键假设是纳米多孔二维晶体聚合物膜将使超流氦-4约瑟夫森结结构成为可能。该项目旨在演示超流体约瑟夫森结，并探索如何控制和测量超流体通过纳米孔膜的限制几何形状的量子传输。为了了解基于这种效应的物质波干涉器件、陀螺仪、量子限幅放大器、量子标准和量子比特结构的最终性能，我们将研究这些结的基本噪声特性。作为这些实验的一部分，这个项目将研究凝聚态物理、量子材料、材料科学和量子工程中的基本问题。该项目将为超流体SQUID、声学放大器、量子标准和量子比特等新的量子设备奠定基础。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。