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Light-matter interactions in realistic settings: unifying open quantum systems with macroscopic quantum electrodynamics

现实环境中的光与物质相互作用：将开放量子系统与宏观量子电动力学统一起来

基本信息

批准号：
2888362
负责人：
金额：
--
依托单位：
University of Glasgow
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2888362
关键词：
Light matter interactions realistic settings

项目摘要

"The interaction between light and isolated matter (i.e. single atoms) has been studied for decades. It is well understood, but in reality, no system can be truly isolated from its surroundings which may be highly complex. This difficulty has led to various techniques for dealing with what are known as open quantum systems, where a distinction is made between a 'system' to be studied and an 'environment' with which it interacts.A related but separate formalism called macroscopic quantum electrodynamics (MQED) aims to describe the interaction of quantum light with dissipative media. Its strengths are in taking into account inhomogeneous objects, such as those needed to calculate Casimir forces between complex objects. The systems described in MQED are similar to those discussed in open quantum systems, but the philosophy and underpinnings of MQED are entirely different. For example, it makes no distinction between the 'system' and 'environment' parts of a given setup. The question to be answered during this PhD project whether the formalism of MQED can be unified with that of open quantum systems. The resulting theory would have broad applicability; one initial example would be collective effects in energy transfer between vibrationally-active molecules in inhomogeneous environments. "

“光和孤立物质（即单个原子）之间的相互作用已经研究了数十年。这是众所周知的，但实际上，没有任何系统能够真正与其高度复杂的周围环境隔离。这种困难导致了处理所谓开放量子系统的各种技术，其中要研究的“系统”和与其相互作用的“环境”之间存在区别。一种相关但独立的形式主义，称为宏观量子电动力学（MQED）旨在描述量子光与耗散介质的相互作用。它的优势在于考虑了非均匀物体，例如计算复杂物体之间的卡西米尔力所需的物体。 MQED 中描述的系统与开放量子系统中讨论的系统类似，但 MQED 的原理和基础完全不同。例如，它不区分系统的“系统”和“环境”部分给定的设置。本博士项目要回答的问题是 MQED 的形式主义是否可以与开放量子系统的形式主义统一。由此产生的理论将具有广泛的适用性；第一个例子是非均匀环境中振动活跃分子之间能量转移的集体效应。 ”