- #1
espen180
- 834
- 2
I would like to ask some questions about the photon as a mediator particle of the electromagnetic force.
As far as I know, in order to dertermine the complete state of a photon, we need to know the values of two entities, which are the position and momentum 4-vectors [tex]x^{\mu}[/tex] and [tex]p^{\mu}[/tex]. These are related through the HUP:
[tex]\Delta x^{\mu}\Delta p^{\mu}\geq \frac{\hbar}{2}[/tex] (no summation)
Also, photons always follow geodesic curves in space-time.
However, despite the fact that no geodesics exit from beyond the event horizon of a black hole, charged black holes exert a Lorentz force on other charged bodies. It appears like photons, when mediating the Lorentz force, are exempt from the rules of GR. I see two possibilities:
1. I have misunderstood something fundamental about charged black holes.
2. I don't know enough particle physics to make intelligent guesses about mediator particles.
If anyone could explain the issue to me, I would appreciate it.
As far as I know, in order to dertermine the complete state of a photon, we need to know the values of two entities, which are the position and momentum 4-vectors [tex]x^{\mu}[/tex] and [tex]p^{\mu}[/tex]. These are related through the HUP:
[tex]\Delta x^{\mu}\Delta p^{\mu}\geq \frac{\hbar}{2}[/tex] (no summation)
Also, photons always follow geodesic curves in space-time.
However, despite the fact that no geodesics exit from beyond the event horizon of a black hole, charged black holes exert a Lorentz force on other charged bodies. It appears like photons, when mediating the Lorentz force, are exempt from the rules of GR. I see two possibilities:
1. I have misunderstood something fundamental about charged black holes.
2. I don't know enough particle physics to make intelligent guesses about mediator particles.
If anyone could explain the issue to me, I would appreciate it.