IV。Unruh效应、自旋极化和Derbenev-Kondratenko公式

IV. Unruh Effect, Spin Polarisation and the Derbenev-Kondratenko Formalism

D. P. Barber

备注：: 2 pages. No figures. Latex. Paper 4 of a set of 5. others are physics/9901038 physics/9901041 physics/9901042 physics/9901044

阅读 PDF ↗

arXiv 页面 ↗HTML 原文 ↗

摘要英文摘要相关论文

摘要：

本文解释了Bell和Leinaas计算的Unruh辐射引起的自旋极化水平与Derbenev-Kondratenko公式的关系。

英文摘要：

The relationship between the level of spin polarisation caused by Unruh radiation as calculated by Bell and Leinaas and that obtained from the Derbenev-Kondratenko formalism is explained.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

阅读原文

阅读 PDF ↗

arXiv 页面 ↗HTML 原文 ↗

本文内容

摘要英文摘要相关论文

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

继续探索

相关论文

关于狭义相对论允许的Stern-Gerlach力和经典自旋Derbenev-Kondratenko粒子的特例

On Stern-Gerlach forces allowed by special relativity and the special case of the classical spinning particle of Derbenev-Kondratenko

这项工作是专门检查的斯特恩-格拉赫力符合狭义相对论，是最近的兴趣在相对论斯特恩-格拉赫力作用于极化质子在高能粒子加速器的动机。本文考虑了具有任意内禀磁偶极矩的经典带电粒子在外电磁场中的轨道和自旋运动方程，并通过施加狭义相对论的约束和限制到自旋的一阶（=一阶$\hbar$），得到了一类定义良好的自旋轨道系统。所有这些系统都可以平等对待，包括像弗伦克尔和古德所考虑的那些突出的案例。弗伦克尔的情况下，被认为是非常详细的，因为我表明，这个系统是相同的介绍了由Derbenev和Kondratenko研究自旋运动在加速器。特别是，我证明了Derbenev和Kondratenko的自旋轨道系统是（非明显）庞加莱协变的，并确定该系统下的庞加莱群的变换性质。Derbenev-Kondratenko哈密顿量最初是作为一种结合相对论性自旋进动和洛伦兹力的方法提出的。上述发现现在表明，Derbenev-Kondratenko哈密顿量也为处理相对论性Stern-Gerlach力提供了一个合理的框架。数值例子的基础上的弗伦克尔和良好的HERA质子环和电磁陷阱的情况下提供。

1996-11-01physics.acc-ph

对Derbenev和Kondratenko动能方法在电子存储环中极化束的扩展

Elaboration on the kinetic approach of Derbenev and Kondratenko to spin-polarized beams in electron storage rings

University of New Mexico（新墨西哥大学）；University of Maryland College Park（马里兰大学帕克分校）；Los Alamos National Laboratory (LANL)（洛斯阿拉莫斯国家实验室）；Cornell University（康奈尔大学）；Emily Griffith Technical College（艾米丽格里菲斯技术学院）；Deutsches Elektronen–Synchrotron (DESY)（德国电子同步加速器）

本文扩展了Derbenev和Kondratenko的动能方法，用于描述存储环中电子自旋极化的影响，并提出了新的计算方法和应用范围。

2026-02-23physics.acc-ph

Re-evaluation of Spin-Orbit Dynamics of Polarized e+ e- Beams in High Energy Circular Accelerators and Storage Rings: an approach based on a Bloch equation

We give an overview of our current/future analytical and numerical work on the spin polarization in high-energy electron storage rings. Our goal is to study the possibility of polarization for the CEPC and FCC-ee. Our work is based on the so-called Bloch equation for the polarization density introduced by Derbenev and Kondratenko in 1975. We also give an outline of the standard approach, the latter being based on the Derbenev-Kondratenko formulas.

2021-01-22physics.acc-ph

The Bloch equation for spin dynamics in electron storage rings: computational and theoretical aspects

In this paper we describe our work on spin polarization in high-energy electron storage rings which we base on the Bloch equation for the polarization density and which aims towards the e-/e+ option of the proposed Future Circular Collider (FCC-ee) and the proposed Circular Electron Positron Collider (CEPC). The Bloch equation takes into account non spin-flip and spin-flip effects due to synchrotron radiation including the spin-diffusion effects and the Sokolov-Ternov effect with its Baier-Katkov generalization as well as the kinetic-polarization effect. This mathematical model is an alternati…

2020-07-29physics.acc-ph