Non-perturbative phenomena in strong magnetic fields

强磁场中的非微扰现象

• 批准号: 2757105
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 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=studentship-2757105
• 关键词: Non; perturbative; phenomena; strong; magnetic

The Standard Model of particle physics predicts that at sufficiently strong magnetic fields, approximately 10^21 tesla, the electroweak sphaleron energy vanishes, and therefore baryon number violation becomes unsuppressed. If magnetic monopoles with mass less than around 100 TeV exist, as predicted by some Pati-Salam -like unification models, they would also be produced in such magnetic fields by the electromagnetic dual of the Schwinger process. Even though these field strengths are currently far beyond reach, it is possible to reach them in principle in sufficiently high energy heavy ion collisions. The purpose of this project is to study these non-perturbative quantum field theory processes in this setting, taking the time and space dependence of the induced magnetic field into account, using both classical field theory and approximative quantum field theory methods. The aim is to determine reliably the collision energy required to catalyse baryon number violation and to produce magnetic monopoles of given mass.

粒子物理的标准模型预测，在足够强的磁场下，大约10^21特斯拉，电弱球面能量消失，因此重子数破坏不受抑制。如果存在质量小于100TeV左右的磁单极子，正如一些Pati-Salam类统一模型所预测的那样，它们也将通过Schwinger过程的电磁对偶在这样的磁场中产生。尽管这些场强目前远远无法达到，但在足够高的能量重离子碰撞中，原则上仍有可能达到这些场强。本项目的目的是利用经典场论和近似量子场论方法，考虑感应磁场的时间和空间依赖性，在这种情况下研究这些非微扰量子场论过程。其目的是可靠地确定催化重子数破坏和产生给定质量的磁单极子所需的碰撞能量。