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I don't understand why non-locality is a problem. Fields are non-local. If particles are point-like, fields are volume-like and permeate all of space. Proble
by snarfy 8y ago
I don't understand why non-locality is a problem. Fields are non-local. If particles are point-like, fields are volume-like and permeate all of space. Problems like spooky action at a distance aren't really problems if there is no distance from the field's point of view.
- danenania 8y agoWhy isn't there distance from the field's point of view? Isn't the field spread throughout space?
- snarfy 8y agoBut it's still considered one field, not many individual fields at each point. That's why I called it volume-like. The electric field of the universe doesn't have a position. It has a volume.
- fjsolwmv 8y agoFields are not nonlocal. Interactions in a field propagate at the speed of light or force-carrying particles. This is one of Eintein's major contributions to physics, that nothing travels faster than light.
- snarfy 8y agoI guess I'm arguing it's more a change of the field, not something propagating in it. Faster than light restrictions do not apply to space itself which, e.g. can expand faster than light. The electric field is a property of space. It's strength and properties do not depend on spacial coordinate. When two particles are entangled, maybe instead the field is 'twisted/warped' at those particles. Entangling particles alters the field, not the particles.