Quantum phenomena in high-intensity laser-matter interactions

高强度激光与物质相互作用中的量子现象

基本信息

批准号：
EP/S010319/1
负责人：
Anton Ilderton
金额：
$ 46.14万
依托单位：
Plymouth University
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FS010319%2F1
关键词：
Quantum phenomena intensity laser matter

项目摘要

A new era of high-intensity laser experiments has begun.Recent UK experiments, in which beams of ultra-relativistic electrons were collided with intense laser pulses, have shown that it is possible not only to use intense lasers to probe fundamental physics, but also to generate radiation sources with unique properties, which find applications across the sciences. Such experiments are extremely challenging, and despite recent successes there is disagreement over to what extent quantum effects have been observed. Discrepancies between experimental results and theoretical predictions have been attributed to the numerical models of quantum effects employed in Particle-In-Cell (PIC) codes used to simulate and analyse experiments.A host of new experiments will begin this year, and will be able to probe the transition from classical to quantum physics in intense electromagnetic fields. It is therefore critical that we improve our understanding of theoretical models, and their implementations, in order to ensure that theoretical predictions and analyses keep up with experimental progress.To meet this urgent experimental demand we propose developing existing theory on two fronts.On one front, we will extend existing models to include currently neglected processes (such as absorption and trident pair production) in a systematic way that can be immediately employed by simulators. On the second front, we will analyse a number of quantum effects which cannot be captured by existing numerical models (but which become relevant in e.g. the overlapping field geometries of future facilities, or in dense electron bunches), assess their importance to experimental campaigns, and develop a methodology to implement them numerically, going beyond current models.Doing so requires a team of researchers who are not only experts in the theory of quantum effects in intense laser physics, but who also have the experience required to understand numerical implementation and experimental analyses. This is not a case of benchmarking existing codes, already well-covered in the literature. What is needed, rather, is a "top down", approach which can verify, and improve upon, the models of quantum effects which are used in the codes.Plymouth hosts an established, world-leading research group in the area of intense laser-matter interactions. Staff members are research-active and well-known in the community as experts in the theory of quantum effects in intense laser physics. Furthermore, the Investigators attached to this project are actively involved in experimental efforts, being for example part of the team which recently demonstrated radiation reaction in laser-matter collisions in an experiment at the UK's Central Laser Facility.As such the Investigators have precisely the right skillset to undertake this timely project and deliver new results of import to a wide community of physicists. This will help maintain the UK's world-leading capabilities in the active research area of intense laser-matter interactions.

高强度激光实验的新时代已经开始。最近在英国进行的超相对论电子束与强激光脉冲碰撞的实验表明，不仅可以使用强激光来探测基础物理，而且还可以利用强激光来探测基础物理。产生具有独特特性的辐射源，这些辐射源在整个科学领域都有应用。此类实验极具挑战性，尽管最近取得了成功，但对于观察到量子效应的程度仍存在分歧。实验结果与理论预测之间的差异归因于用于模拟和分析实验的细胞内粒子 (PIC) 代码中采用的量子效应数值模型。今年将开始大量新实验，并且能够探索强电磁场中从经典物理到量子物理的转变。因此，提高对理论模型及其实现的理解至关重要，以确保理论预测和分析跟上实验进展。为了满足这一迫切的实验需求，我们建议从两个方面发展现有理论。一方面，我们将以系统的方式扩展现有模型，以包括当前被忽视的过程（例如吸收和三叉戟对生产），以便模拟器可以立即使用。在第二方面，我们将分析现有数值模型无法捕获的许多量子效应（但它们与未来设施的重叠场几何结构或密集电子束等相关），评估它们对实验活动的重要性，并开发一种超越当前模型的数值实现方法。这样做需要一个研究团队，他们不仅是强激光物理量子效应理论的专家，而且还拥有理解数值实现和实验所需的经验分析。这不是对现有代码进行基准测试的情况，现有代码已经在文献中详细介绍过。相反，我们需要的是一种“自上而下”的方法，可以验证和改进代码中使用的量子效应模型。普利茅斯在强激光领域拥有一个成熟的、世界领先的研究小组-物质相互作用。工作人员研究活跃，是强激光物理量子效应理论方面的专家，在业界享有盛誉。此外，该项目的研究人员积极参与实验工作，例如，最近在英国中央激光设施的一项实验中证明了激光与物质碰撞中的辐射反应。因此，研究人员完全有权利承担这一及时项目并向广大物理学家提供重要的新成果的技能。这将有助于保持英国在强激光与物质相互作用的活跃研究领域的世界领先能力。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Conceptual design report for the LUXE experiment

LUXE实验的概念设计报告

DOI：
10.1140/epjs/s11734-021-00249-z
发表时间：
2021-02-03
期刊：
The European Physical Journal Special Topics
影响因子：
0
作者：
H. Abramowicz;U. Acosta;M. Altarelli;R. Assmann;Z. Bai;T. Behnke;Y. Benhammou;T. Blackburn
通讯作者：
T. Blackburn

Particle-beam scattering from strong-field QED

强场 QED 的粒子束散射