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arXiv · 2304.14366

Gauge fixing and gauge correlations in noncompact Abelian gauge models

Claudio Bonati·Andrea Pelissetto·Ettore Vicari
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Abstract

We investigate some general properties of linear gauge fixings and gauge-field correlators in lattice models with noncompact U(1) gauge symmetry. In particular, we show that, even in the presence of a gauge fixing, some gauge-field observables (like the photon-mass operator) are not well-defined, depending on the specific gauge fixing adopted and on its implementation. Numerical tests carried out in the three-dimensional noncompact lattice Abelian Higgs model fully support the analytical results and provide further insights.

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Claudio Bonati, Andrea Pelissetto, Ettore Vicari. 2023-04-27. Gauge fixing and gauge correlations in noncompact Abelian gauge models. https://doi.org/10.1103/physrevd.108.014517

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