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arXiv 0912.3767hep-th
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从相互作用的电磁场和扭转场看屏蔽和限制之间的相互作用

On the interplay between screening and confinement from interacting electromagnetic and torsion fields

Patricio Gaete, José A. Helaÿel-Neto

摘要:

研究了在外加电磁场作用下轴向扭转场与光子耦合的屏蔽和禁闭特性。为此,我们计算静态量子势。我们的讨论进行规范不变,但路径依赖的变量形式主义,这是替代的威尔逊圈的方法。结果表明,在恒定电场强度期望值的情况下,静电势仍为库仑势,而在恒定磁场强度期望值的情况下,静电势为Yukawa势和线性势之和,导致静电探针电荷的禁闭.

英文摘要:

Features of screening and confinement are studied for the coupling of axial torsion fields with photons in the presence of an external electromagnetic field. To this end we compute the static quantum potential. Our discussion is carried out using the gauge-invariant but path-dependent variables formalism which is alternative to the Wilson loop approach. Our results show that, in the case of a constant electric field strength expectation value, the static potential remains Coulombic, while in the case of a constant magnetic field strength expectation value the potential energy is the sum of a Yukawa and a linear potential, leading to the confinement of static probe charges.

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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