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arXiv 0903.4340hep-thgr-qc
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无规范电动力学

Gauge-free Electrodynamics

Parthasarathi Majumdar, Srijit Bhattacharjee

摘要:

我们提出了一个重新制定的电动力学的{ \it物理}矢量势完全免费的规范歧义。量子化的理论导致了一个传播子,这是规范不变的建设在这个重新表述,在对比标准的光子传播。将该理论与带电阿贝尔希格斯场耦合,在量子水平上导致单圈有效势,该势实现了质量产生的科尔曼-温伯格机制,从而解决了其规范依赖性问题。我们与我们的研究结果最近的工作Niemi等。和Faddeev,其中类似的策略被采用在一个版本的电弱理论。其他具有线性阿贝尔规范不变性的理论,如线性化的自旋2引力理论或反对称张量场,它们都可以用物理矢量或张量势重新表述,而没有规范的模糊性,也进行了简要的讨论。

英文摘要:

We propose a reformulation of electrodynamics in terms of a {\it physical} vector potential entirely free of gauge ambiguities. Quantizing the theory leads to a propagator that is gauge invariant by construction in this reformulation, in contrast to the standard photon propagator. Coupling the theory to a charged Abelian Higgs field leads at the quantum level to a one loop effective potential which realizes the Coleman-Weinberg mechanism of mass generation, thus resolving the issue of its gauge dependence. We relate our results to recent work by Niemi et. al. and Faddeev, where similar strategies are adopted in a version of the electroweak theory. Other theories with linear Abelian gauge invariance, like the linearized spin 2 theory of gravity or the antisymmetric tensor field, which may all be reformulated in terms of physical vector or tensor potentials without gauge ambiguities, are also discussed briefly.

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