Like it or not, in modern physics, "photon" refers to a particular type of discrete lump of momentum and energy. It is a thing you can definitely have one of.
[1] https://en.wikipedia.org/wiki/Standard_Model
Like it or not, in modern physics, "photon" refers to a particular type of discrete lump of momentum and energy. It is a thing you can definitely have one of.
[1] https://en.wikipedia.org/wiki/Standard_Model