Re: nonlocalized electron's EM field
From: alistair (alistair_at_goforit64.fsnet.co.uk)
Date: 09/23/04
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Date: Thu, 23 Sep 2004 09:46:59 +0000 (UTC)
blake.winter@houghton.edu (Blake Winter) wrote in message news:<87423d2a.0409201632.14bd753d@posting.google.com>...
> Recently I heard that there was an experiment done in which an
> electron was placed in a two dimsionional "ring" of sorts, in such a
> manner that its wavefunction spread throughout the ring but was
> essentially still localized in the perpendicular dimension. Then the
> electric field resulting was measured and was found to behave as
> though there was a charge distribution proportional to the probability
> density from the wave function with a total charge equal to that of an
> electron.
blake.winter@houghton.edu (Blake Winter) wrote in message news:<87423d2a.0409201632.14bd753d@posting.google.com>...
> Recently I heard that there was an experiment done in which an
> electron was placed in a two dimsionional "ring" of sorts, in such a
> manner that its wavefunction spread throughout the ring but was
> essentially still localized in the perpendicular dimension. Then the
> electric field resulting was measured and was found to behave as
> though there was a charge distribution proportional to the probability
> density from the wave function with a total charge equal to that of an
> electron.
This does not prove that the charge of a single electron is spread out
around the ring.The single electron can affect other charges around
the ring when its electric field displaces non-conducting electrons
near to it, which in turn displace non-conducting electrons near to
them (electrons whose charge is normally completely cancelled by
proton charges - as seen from a long distance -would no longer have
their charges completely cancelled.The original electron
would get feedback from the displacements it causes and so a
non-uniform electric field can arise around the ring.
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