4 ms·
I'm not sure if this comparison holds. Space-time is the environment that matter moves through. Curvatures in spacetime affects how matter moves. What is the
by hasenj 11y ago
I'm not sure if this comparison holds.
Space-time is the environment that matter moves through. Curvatures in spacetime affects how matter moves.
What is the electromagnetic gauge field? Why does it only affect charged particles? Why does it affect particles differently depending on the type of charge they hold (positive/negative)?
It doesn't seem to be the same thing as spacetime.
- contravariant 11y agoGiven the nature of this subject not all your questions have definitive answers, but I'll try to give it my best shot. You should probably consider these answers a subjective interpretation, rather than objective facts. The most consistent interpretation of QFT I've seen so far views gauge fields as principal bundles. This implies that matter not only propagate through space-time but also through the gauge field, and the way it is 'changed' as it passes through the gauge field is related to the charge. Now technically the electromagnetic gauge field (and others) also affects uncharged particles, mainly because it couples to gravity, but perhaps also in more subtle ways (think of the way light can be affected by simply passing through a piece of matter). Admittedly there are quite a few differences (since the metric has a somewhat special position) but there are also quite a few similarities. Unfortunately nobody has yet found a (testable) theory that either unifies the forces or can treat the separately. I'm placing my bets on the 'unification' side though.