Developing a quantum thermodynamic theory for driven and heated spin systems.

开发用于驱动和加热自旋系统的量子热力学理论。

• 批准号: 2579023
• 金额: --
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2579023
• 关键词: Developing; quantum; thermodynamic; theory; driven

Quantum thermodynamics is a new research field, where thermodynamics is studied in the small-system size limit where fluctuations become non-negligible, weak coupling between system and environment cannot be assumed, and a fully quantum mechanical description may be needed [1]. This project is concerned with the application of theoretical tools from the fields of quantum thermodynamics and open quantum systems to the problem of modelling the dynamics, the equilibrium state, and the timescale of equilibration, of a collection of interacting spins that are strongly coupled to their environment. The aim of this project is to find analytical equations that describe the spin dynamics when they are driven by a changing magnetic field and exposed to a heated environment (with potentially multiple temperatures). These will then be used to quantify the importance of quantum mechanical and strong coupling effects in the magnetization dynamics and in the long-time steady state of the spins

量子热力学是一个新的研究领域，其中热力学是在小系统尺寸限制下研究的，在小系统尺寸限制下，涨落变得不可忽略，系统与环境之间的弱耦合不能被假设，并且可能需要完全的量子力学描述[1]。该项目关注的是将量子热力学和开放量子系统领域的理论工具应用于对与环境强耦合的相互作用自旋集合的动力学、平衡态和平衡时标进行建模的问题。该项目的目的是找到描述自旋动力学的分析方程，当它们被变化的磁场驱动并暴露于加热环境（可能有多种温度）时。这些将被用来量化的重要性，量子力学和强耦合效应的磁化动力学和长期稳定状态的自旋