> even if that observation should not disturb the particle's motion
this claim has always frustrated me
can someone who agrees with it defend it from first principles?
this claim has always frustrated me
can someone who agrees with it defend it from first principles?
However, single photon double slit experiments don't show this - the particles act as though they are interfering with each other even though a photon detector will show photons arriving one at a time, at a rate which shows only one photon could have been traversing the apparatus at a time.
> If we place a detector inside or just behind one slit, we can find out whether any given particle goes through it or not. In that case, however, the interference vanishes. Simply by observing a particle's path – even if that observation should not disturb the particle's motion – we change the outcome.
when we place an observer at one of the slits we lose the previously ambiguous diffraction and instead get a clump pattern, but we are definitely probing where it is