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.

该项目结合了两种外来材料，即超流体氦气和纳米多孔二维聚合物，以开发一种传感器设备，该设备利用在绝对零接近的温度下利用奇怪的液体液氦的奇怪宏观量子行为。纳米孔膜将在两个超氟氦的储层之间提供薄弱的联系，并启用称为约瑟夫森连接处的量子耦合。预计储层之间的超氟的运输被预测具有量子力学描述的异常特性。基于这种架构的量子传感器将允许测量无法检测到的传统传感器的现象，从地球旋转的微小波动到暗物质的指纹。该量子传感器的技术应用是宽度的。它们在跨越大地测量的学科（GPS和地质探索），引力和一般相对论（暗物质与宇宙学），计量学（物理量的量子标准）和量子信息（量子计算）。探索Josephson的超流体氦结合可以实现在几个科学学科中有用的新功能。关键的假设是纳米二维晶体聚合物膜将使超流体氦-4约瑟夫森交界结构。该项目旨在展示超流体约瑟夫森连接，并探索如何通过纳米多孔膜的限制几何形状来控制和测量超流体的量子运输。将研究连接的基本噪声特性，以了解基于此效果的物质波浪干扰设备，陀螺仪，量子限制放大器，量子标准和量化结构的最终性能。作为这些实验的一部分，该项目将研究凝结物理，量子材料，材料科学和量子工程中的基本问题。该项目将为新的量子设备（例如超级流体鱿鱼，声学放大器，量子标准和量化）奠定基础。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛的影响来通过评估来获得的支持。