Do Charged Particles Exhibit Stronger Gravitational Fields?

[quantumfoam]

Are you saying that the uncharged particle is not a source of a gravitational field?

I figured that he meant that the field for the charged object is also a source of curvature. But I think he also meant the same for it's mass.

 

[quantumfoam]

When you are computing the energy density of an uncharged object in the stress energy tensor, do you include it's "rest-mass" energy density too?

 

[Dale]

When you are computing the energy density of an uncharged object in the stress energy tensor, do you include it's "rest-mass" energy density too?

Yes. That is usually the dominant contributor. It is part of the 0,0 component here:
http://en.wikipedia.org/wiki/Stress–energy_tensor

 

[quantumfoam]

Thank you very much

 

[quantumfoam]

Just to be clear, I can't add the stress-energy tensor of a charged subatomic particle in terms of its mass and the stress-energy tensor of the same subatomic particle in terms of its charge?

 

[Dale]

Just to be clear, I can't add the stress-energy tensor of a charged subatomic particle in terms of its mass and the stress-energy tensor of the same subatomic particle in terms of its charge?

You can add the stress energy tensors, but the resulting curvature tensors don't add.

 

[Altabeh]

Just to be clear, I can't add the stress-energy tensor of a charged subatomic particle in terms of its mass and the stress-energy tensor of the same subatomic particle in terms of its charge?

Hello

Including charge in the equations of motion opens the door to Lorentz force to be applied on the test particles. This happens to be the case if an electromagnetic stress tensor is added to the gravitational one since the Lorentz force is related with electromagnetic strength tensor F_{{\mu}{\nu}} in GR, as many others may have informed you of. Since it is an additive effect, then of course the field would be slightly stronger though for a subatomic particle like electron, gravity loses to Coulomb strength by 10^{-42} which is quite decent for it to be neglected in any physical scale.

P