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arXiv 0901.3413hep-thastro-ph.HEhep-ph
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QED中是否存在最大磁场?

Is there a maximum magnetic field in QED?

Chung Ngoc Leung, Shang-Yung Wang

摘要:

Shabad和Usov最近指出,在QED中存在一个最大磁场10^{42} G,超过这个值,磁化真空就变得不稳定。使用非微扰分析,始终纳入有效电子质量和屏蔽效应在一个强磁场,我们表明,正电子偶素崩溃的现象从来没有发生。因此,在量子电动力学中不存在最大磁场,磁化真空对所有的磁场值都是稳定的。

英文摘要:

It was recently conjectured by Shabad and Usov that there exists in QED a maximum magnetic field of 10^{42} G, above which the magnetized vacuum becomes unstable. Using a nonperturbative analysis that consistently incorporates the effective electron mass and the screening effect in a strong magnetic field, we show that the conjectured phenomenon of positronium collapse never takes place. Thus, there does not exist a maximum magnetic field in QED and the magnetized vacuum is stable for all values of the magnetic field.

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。

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