Comments on "On vector potential of the Coulomb gauge"

TL;DR

This paper clarifies the instantaneous nature of Coulomb gauge potentials and derives the vector potential in terms of the magnetic field, providing a clearer understanding of gauge potentials.

Contribution

It offers a concise derivation of the Coulomb gauge vector potential directly from the magnetic field, clarifying its instantaneous character.

Findings

The Coulomb gauge potentials are instantaneous.

Derived vector potential expressed in terms of magnetic field.

Clarified the physical interpretation of Coulomb gauge potentials.

Abstract

The instantaneous nature of the potentials of the Coulomb gauge is clarified and a concise derivation is given of the vector potential of the Coulomb gauge expressed in terms of the instantaneous magnetic field.