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From: gwyn@Brl-Vld.ARPA
Newsgroups: net.physics
Subject: Re:  Simple QM question
Message-ID: <1170@sri-arpa.UUCP>
Date: Thu, 24-May-84 11:06:25 EDT
Article-I.D.: sri-arpa.1170
Posted: Thu May 24 11:06:25 1984
Date-Received: Fri, 1-Jun-84 03:09:15 EDT
Lines: 10

From:      Doug Gwyn (VLD/VMB) <gwyn@Brl-Vld.ARPA>

Mel Lax & I decided that the propagation of the computed momentum
at the detecting sphere "backward in time" to the point of
emission would necessarily involve a spread in the particle wave
packet so that the Uncertainty Principle would be obeyed at the
place/time of emission of the particle.

This conclusion was the result of intuition about these things
and could perhaps be mistaken.  We didn't do any calculations.