🚀 go-pugleaf

A quick comment on the role of the wavefunction/density matrix
in consistent histories (ala Hartle & Gell-Mann):
There is an initial condition (i.e. initial density operator) to be specified
in the decoherence functional.  The initial conditions will  determine in part
which histories decohere, and are quasi-classical.  The specific dynamics, and
choice of coarse graining will also be important.


A variation of this scheme included two density operators for both initial and
final conditions. This seemed to be an attempt to remove the apparent
introduction of time asymetry by hand. I hope the proposal has died a quiet and
painless death. :)

-mike gallis
mrg3@psuvm.psu.edu