ca314159 (ca314159@bestweb.net)
Sun, 21 Mar 1999 01:23:27 -0800
Hi,
I really hate resorting to physics jargon and
mathematics but I think in this case the meanings
are narrow enough to express what I mean:
As the state parameters of a density matrix
become less discrete and more continuous,
the density matrix becomes more complete,
until at the extreme the density matrix does
not represent probabilities but the complete
classical Newtonian representation of what
the density matrix was intended to model.
These intermediate semi-classical stages
resolve the system that the density matrix
is modelling.
The complete density matrix is a fiction in the
sense that it reduces all non-determinism to
determinism. Randomness resolved completely
is not randomness.
This brings in the concept of infinty which
leads to the renormalization problem, which is
solved in many cases by picking a suitable cutoff
where the density matrix is semi-classically
sufficient for the intended purpose of the
modelling.
--
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