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arXiv 1402.6941hep-thmath-phmath.MP
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拓扑规范固定II:一个同伦公式

Topological gauge fixing II: a homotopy formulation

Laurent Gallot, Eric Pilon, Frank Thuillier

摘要:

我们通过同伦条件重新讨论了在${\mathbb{R}}^3$中定义的阿贝尔Chern-Simons场论中与度规无关的Fock-Schwinger规范的实现。这导致拉格朗日$F \wedge hF$的曲率$F$和庞加莱同伦算子$h$。相应的场论提供了与阿贝尔陈-西蒙斯理论相同的链不变量。顺便说一下,在Fock-Schwinger规范中产生Chern-Simons理论的链接不变量的那部分规范场传播子不需要任何计算就可以恢复。

英文摘要:

We revisit the implementation of the metric-independent Fock-Schwinger gauge in the abelian Chern-Simons field theory defined in ${\mathbb{R}}^3$ by means of a homotopy condition. This leads to the lagrangian $F \wedge hF$ in terms of curvatures $F$ and of the Poincaré homotopy operator $h$. The corresponding field theory provides the same link invariants as the abelian Chern-Simons theory. Incidentally the part of the gauge field propagator which yields the link invariants of the Chern-Simons theory in the Fock-Schwinger gauge is recovered without any computation.

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