I've invoked the alpha rules simply because too many threads are being lost to squabblings.

I have seen written work suggesting that the EM field might have a vorticity, however, I have not found anything conclusive, except for two equations which attempted to describe a vorticity in the field, but it wasn't very satisfying.

It is said from the equations and language of Maxwell that the electromagnetic field contains a momentum given as:

$$P=Mv +qA$$

(the momentum coupling equation)

where A is the potential M is for mass and P is the canonical momentum. Vorticity as I understand it, should really arise in any field associated to moving objects. I have often pondered the exact mathematical nature in which you can describe this for an EM-field, and the best I personally came up with was a modification,

$$P=M \sigma +qA=M (\nabla \times v) + qA$$

Afterall, the vorticity is simply the curl of the velocity vector. If anyone knows whether the EM field is said to have an inherent vorticity, can I see some examples of it, and if that be the case, then can someone properly define the differences between the vorticity and the viscosity, as they seem very similar.

I have seen written work suggesting that the EM field might have a vorticity, however, I have not found anything conclusive, except for two equations which attempted to describe a vorticity in the field, but it wasn't very satisfying.

It is said from the equations and language of Maxwell that the electromagnetic field contains a momentum given as:

$$P=Mv +qA$$

(the momentum coupling equation)

where A is the potential M is for mass and P is the canonical momentum. Vorticity as I understand it, should really arise in any field associated to moving objects. I have often pondered the exact mathematical nature in which you can describe this for an EM-field, and the best I personally came up with was a modification,

$$P=M \sigma +qA=M (\nabla \times v) + qA$$

Afterall, the vorticity is simply the curl of the velocity vector. If anyone knows whether the EM field is said to have an inherent vorticity, can I see some examples of it, and if that be the case, then can someone properly define the differences between the vorticity and the viscosity, as they seem very similar.

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