Quantum Critical Materials

量子临界材料

• 批准号: 580925-2022
• 负责人: Sorensen, ErikES
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=762881
• 关键词: Quantum; Critical; Materials

At the boundary between phases in a quantum material billions and billions of flowing electrons can entangle themselves with surrounding quantum mechanical spins and give rise to a new critical state. In essence, the electrons and spins might cease to exist as individual particles but instead form a new quantum critical state. The present proposal focuses on understanding such a quantum critical material and the possibility for exploiting it to develop new technologies. Quantum entanglement is the basis for storage and processing of quantum information as well as for the most intriguing proposals for designing quantum sensors. The critical state is also believed to drive the formation of technologically important new phases such as superconductivity. The advancement of our knowledge of how superconductivity arise is crucial for designing new materials that could be the impetus for establishing new sectors of the economy. Likewise, metrology has many important industrial applications and quantum sensors holds the promise of significantly increasing the precision and sensitivity of measurements.

在量子材料中的相之间的边界处，数十亿的流动电子可以与周围的量子力学自旋纠缠在一起，并产生新的临界状态。从本质上讲，电子和自旋可能不再作为单个粒子存在，而是形成一个新的量子临界态。目前的建议侧重于了解这种量子临界材料以及利用它开发新技术的可能性。量子纠缠是量子信息存储和处理的基础，也是设计量子传感器的最有趣的建议的基础。临界状态也被认为是推动技术上重要的新阶段，如超导性的形成。我们对超导性如何产生的知识的进步对于设计新材料至关重要，这些新材料可能成为建立新经济部门的动力。同样，计量学具有许多重要的工业应用，量子传感器有望显着提高测量的精度和灵敏度。