Re: Quantum Computers

From: John Clark (jonkc@worldnet.att.net)
Date: Sat Aug 21 1999 - 09:02:48 MDT


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

>>Me:
>>Again there is nothing special about an
>>observer in this, the same thing would happen if nobody looked at the film,
>>or even if you used a brick wall instead of film, because the important thing
>>is not that the photon makes a record (whatever that is) but simply that it is
>>destroyed.

jmcasey@pacific.net.sg Wrote:

>But can it really be said to have been destroyed? Doesn't the photon add its
>energy to a particle "here" rather than "there," which may (in fact, must) have
>ramifications later and therefore imply, observer or not, that the two universes
>never rejoin?

Heisenberg tells us that there is a point where the change to a physical system
is so small that there is no change at all.

>Or is it that both states exist in the same universe until a definitive
>measurement traces it back to the original root cause, and thus
>fragments the potential states and renders one nonexistent retroactively?

I hope not because then many worlds would louse its only advantage and
have to explain exactly what a measurement is and get into that endless
quagmire; we'd be back to where we started.

    John K Clark jonkc@att.net

-----BEGIN PGP SIGNATURE-----
Version: PGP for Personal Privacy 5.5.5

iQA/AwUBN76/mN+WG5eri0QzEQJRPwCdExZI9IiqK4hraNvP2xmIKz2DasEAoKYc
QbRRiCL2tbZNwHoB/UGBHsMq
=auk4
-----END PGP SIGNATURE-----



This archive was generated by hypermail 2.1.5 : Fri Nov 01 2002 - 15:04:50 MST