Quantum Thermodynamics of Precision in Electronic Devices

电子设备精密的量子热力学

• 批准号: 10058287
• 金额: $ 84.01万
• 依托单位: UNIVERSITY OF OXFORD
• 依托单位国家: 英国
• 项目类别: EU-Funded
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=10058287
• 关键词: Quantum; Thermodynamics; Precision; Electronic; Devices

Quantum technologies exploit the counterintuitive physics of the microscopic world to gain an advantage over purely classical systems.In order to achieve commercial usefulness, major research efforts are now devoted to scaling up current noisy intermediate-scale quantumdevices. The fundamental challenge to be overcome is noise, whose presence is necessitated by basic quantum and thermodynamicprinciples as well as limitations on the precision with which such devices can be measured and controlled. To overcome this challenge,we need to understand the fundamental thermodynamic limitations on precision in quantum devices. Remarkably, it has recently beenpredicted that coherent quantum processes exhibit a new kind of quantum advantage with respect to classical processes: the laws ofquantum thermodynamics allow higher measurement precision for less energy and entropy cost. The ambitious goal of ASPECTS is todemonstrate, explore, and exploit this novel effect on two of the most promising quantum technology platforms: namely,superconductingqubits and nanoelectromechanical devices. Specifically, we will design and build quantum circuit devices to experimentally assess theenergy cost of timekeeping and qubit readout. With support from advanced theory and numerical simulations, we will demonstratequantum-thermodynamic precision advantage in our measurements. This ground-breaking advance will usher in a new paradigm forquantum metrology in which quantum-thermodynamic effects boost both efficiency and precision. Our balanced consortium of earlycareer researchers is founded on our strong existing collaborations and our unified and coherent vision for the future of energy-efficientquantum technologies. Bringing together world-leading expertise in precision measurement, quantum information, and non-equilibriumstatistical physics, ASPECTS will make a deep and lasting impact on the European quantum technologies landscape.

量子技术利用了微观世界中违反直觉的物理学原理，从而获得了超越纯粹经典系统的优势。为了实现商业用途，现在的主要研究工作都致力于扩大目前嘈杂的中等规模量子设备。要克服的根本挑战是噪声，噪声的存在是基本的量子和量子力学原理所必需的，也是对这种设备的测量和控制精度的限制所必需的。为了克服这一挑战，我们需要了解量子器件精度的基本热力学限制。值得注意的是，最近有人预测相干量子过程相对于经典过程表现出一种新的量子优势：量子热力学定律允许以更少的能量和熵代价获得更高的测量精度。ASPECTS雄心勃勃的目标是在两个最有前途的量子技术平台上展示、探索和利用这种新效应：即超导量子比特和纳米机电器件。具体而言，我们将设计和构建量子电路设备，以实验评估计时和量子位读出的能量成本。在先进理论和数值模拟的支持下，我们将在我们的测量中展示量子热力学精度的优势。这一突破性的进展将为量子计量学带来一个新的范式，在这个范式中，量子热力学效应提高了效率和精度。我们由早期职业研究人员组成的平衡联盟建立在我们现有的强大合作以及我们对节能量子技术未来的统一和一致愿景的基础上。ASPECTS汇集了世界领先的精密测量、量子信息和非平衡统计物理学专业知识，将对欧洲量子技术格局产生深远而持久的影响。