In summary, the repulsion between electrons in String theory and loop quantum gravity is essentially the same as in the standard model. However, in string theory, the particles and fields can be described in more detail. The explanation for electrostatic repulsion in string theory is similar to that in QED, but with specific string states rather than virtual particles. String models also aim to incorporate other forces and particles, making them more complex.
#1
Philipsmett
78
4
How the repulsion between electrons occurs in String theory and in the loop quantum gravity? The electrons will also create electrostatic fields, or will it be the another mechanism?
Moderator's note: Moved to Beyond the Standard Model forum as that is where discussion of String Theory and Loop Quantum Gravity belongs.
#3
mitchell porter
Gold Member
1,422
657
All interactions between standard model particles are essentially the same in string theory. It's just that you can say more in string theory about what the particles and fields are.
For example, electrostatic repulsion will have a description in QED, in terms of quantum fields and virtual particles. The explanation in string theory should be identical up to a certain point, but the "virtual photons", etc, would actually be particular string states.
For reference I mention "QED and string theory", which aims to realize just QED, via open strings stretched between space-filling D9-branes and a four-dimensional "probe" D3-brane. The real world contains many other forces and particles, and so the string models are accordingly more intricate.