具有全局磁场和 SqK-旋子的各向异性爱因斯坦宇宙

IF 3.5 4区物理与天体物理 Q1 Physics and Astronomy

Progress of Theoretical and Experimental Physics Pub Date : 2024-06-21 DOI:10.1093/ptep/ptae098

Satsuki Matsuno, Fumihiro Ueno

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引用次数: 0

摘要

我们考虑了一个由两个带电无质量旋子与电磁场耦合的爱因斯坦-狄拉克-麦克斯韦系统，并构建了该系统的精确解系列。解的时空是静态爱因斯坦宇宙的各向异性广义化，它有一个由旋子电流产生的全局宇宙磁场。该磁场是一个无力场，在宇宙磁场研究中发挥了重要作用。我们的精确解被视为一个玩具模型，它描述了早期宇宙中的全局宇宙磁现象。旋子由萨萨基林旋子诱导而来，总狄拉克电流沿着霍普夫校正的纤维流动。磁场是一个接触磁场。

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Anisotropic einstein universes with a global magetic field and SqK-spinors

We consider an Einstein-Dirac-Maxwell system with two charged massless spinors coupled with an electromagnetic field, and construct a family of exact solutions to the system. The solution spacetime is an anisotropic generalization of the static Einstein universe which has a global cosmic magnetic field generated by the current of the spinors. The magnetic field is a force-free field that has played an important role in the study of cosmic magnetic fields. Our exact solution is regarded as a toy model which describes global cosmic magnetic phenomena in the early universe. The spinors are induced from Sasakian quasi-Killing spinors, and the total Dirac current flows along fibers of the Hopf-fibration. The magnetic field is a contact magnetic field.

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来源期刊

Progress of Theoretical and Experimental Physics PHYSICS, MULTIDISCIPLINARY-PHYSICS, PARTICLES & FIELDS

CiteScore

12.00

自引率

5.70%

发文量

148

审稿时长

17 weeks

期刊介绍： Progress of Theoretical and Experimental Physics (PTEP) is an international journal that publishes articles on theoretical and experimental physics. PTEP is a fully open access, online-only journal published by the Physical Society of Japan. PTEP is the successor to Progress of Theoretical Physics (PTP), which terminated in December 2012 and merged into PTEP in January 2013. PTP was founded in 1946 by Hideki Yukawa, the first Japanese Nobel Laureate. PTEP, the successor journal to PTP, has a broader scope than that of PTP covering both theoretical and experimental physics. PTEP mainly covers areas including particles and fields, nuclear physics, astrophysics and cosmology, beam physics and instrumentation, and general and mathematical physics.