Stochastic phase space methods for non-equilibrium systems

非平衡系统的随机相空间方法

• 批准号: 1814201
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1814201
• 关键词: Stochastic; phase; space; methods; non

The aim is to explore and expand the scope of phase space methods for simulating the behaviour of many-body quantum systems out of equilibrium. As an initial project I will be looking for KPZ behaviour within the OPO regime of polaritons in semiconductor microcavities using existing code for the truncated Wigner simulation of this system. This is to serve the dual purpose of familiarising myself with the methods and how they are implemented computationally as well as answering an open question posed by my group's previous research. Further projects will then involve exploring related phase space methods, such as positive P, to go beyond what is accessible to the truncated Wigner approximation to study non-classical effects in non-equilibrium many-body quantum systems, such as polariton lattices.

其目的是探索和扩大相空间方法的范围，以模拟失去平衡的多体量子系统的行为。作为第一个项目，我将使用现有的代码对该系统进行截断的Wigner模拟，寻找半导体微腔中极化子的OPO区域内的KPZ行为。这是为了达到双重目的，既要熟悉这些方法以及它们是如何在计算上实现的，又要回答我的团队之前的研究提出的一个公开问题。然后，进一步的项目将涉及探索相关的相空间方法，如正P，以超越截断Wigner近似所能达到的范围，研究非平衡多体量子系统中的非经典效应，如极化晶格。

项目成果

Searching for the Kardar-Parisi-Zhang phase in microcavity polaritons

寻找微腔极化激元中的 Kardar-Parisi-Zhang 相

• DOI: 10.1103/physrevb.105.205301
• 发表时间: 2022
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Ferrier A

Fully Quantum Scalable Description of Driven-Dissipative Lattice Models

驱动耗散晶格模型的完全量子可扩展描述

• DOI: 10.1103/prxquantum.2.010319
• 发表时间: 2021
• 期刊: PRX Quantum
• 影响因子: 9.7
• 作者: Deuar P

Properties of the signal mode in the polariton optical parametric oscillator regime

极化子光参量振荡器体系中信号模式的特性

• DOI: 10.1103/physrevb.98.165307
• 发表时间: 2018
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Dunnett K