- #1
greypilgrim
- 508
- 36
Hi,
Einstein once showed that if we assume elementary particles to be singularities in spacetime (e.g. black hole electrons), then it is unnecessary to postulate geodesic motion, which in standard GR has to be introduced somewhat inelegantly by the geodesic equation. I don't have access to those papers (and probably wouldn't understand half of it), but I'm just curious how it can be possible to derive a motion simply from the field equations, without assuming any dynamic equation?
Einstein once showed that if we assume elementary particles to be singularities in spacetime (e.g. black hole electrons), then it is unnecessary to postulate geodesic motion, which in standard GR has to be introduced somewhat inelegantly by the geodesic equation. I don't have access to those papers (and probably wouldn't understand half of it), but I'm just curious how it can be possible to derive a motion simply from the field equations, without assuming any dynamic equation?