Is the Electromagnetic Field Omnipresent Throughout the Universe?

[San K]

To keep it simpler let take the electromagnetic (EM) field.

A photon, in one perspective, can be described as an excitation of the EM field.



Is the EM field omnipresent in all (time-space) the universe?

or

Does the photon creates/emit an EM field around it?

 

[kevinferreira]

To keep it simpler let take the electromagnetic (EM) field.

A photon, in one perspective, can be described as an excitation of the EM field.



Is the EM field omnipresent in all (time-space) the universe?

or

Does the photon creates/emit an EM field around it?

I would say the electromagnetic field (or more precisel, the electromagnetic potential field) exists in all space-time. This is the usual quantum field theory theoretical basis (not only for photons, but all particles too) which is used to construct the standard model. Also, a photon cannot 'create' an EM field as it has no electric charge.

 

[tiny-tim]

Hi San K!

To Is the EM field omnipresent in all (time-space) the universe?

Photons are everywhere anyway!

(eg the cosmic microwave background )

 

[RGevo]

If you change the title to existing and excited. Voila

 

[San K]

Thanks Kevin, tiny-tim and RGauld.

Lol RGauld...good idea.