# Almost Radial Gauge

@article{Herdegen2022AlmostRG, title={Almost Radial Gauge}, author={Andrzej Herdegen}, journal={Annales Henri Poincar{\'e}}, year={2022} }

An almost radial gauge $$A^\mathrm {ar}$$
A
ar
of the electromagnetic potential is constructed for which $$x\cdot A^\mathrm {ar}(x)$$
x
·
A
ar
(
x
)
vanishes arbitrarily fast in timelike directions. This potential is in the class introduced by Dirac with the purpose of forming gauge-invariant quantities in quantum electrodynamics. In the quantum case, the construction of smeared operators $$A^\mathrm {ar}(K)$$
A
ar
(
K
)
is enabled by a natural…

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