Hi all, Some time ago I was reading about Anderson localization (posted a question about it was well) - this got me thinking about vacuum fluctuations. I think I have the wrong idea in my mind - so wanted to ask the great community here about it: Quantum (vacuum) fluctuations must have an effect on particle motion? I'm wondering why we don't see effects similar to Anderson localization (although only for short periods), that is, the motion of a particle being temporarily restricted, or changes to particle trajectories, due to quantum fluctuations. I realize that the above would imply all sorts of things, like transfer of momentum to the vacuum, which cannot occur. I'm just not sure I understand why.