Re: Universal non-point of light
Michael Lorrey (retroman@tpk.net)
Mon, 03 Feb 1997 18:57:29 -0500
Hal Finney wrote:
>
> From: Michael Lorrey <retroman@tpk.net>
> > From this, we can see that it becomes
> > possible to communicate at faster than light speeds. Using a reference
> > light source, at point C, individuals at points A and B can communicate
> > by using devices that only have a 50% chance of receiving a photon at
> > any given moment. Like the classic cat experiment, by using binary 1s
> > and 0s to selectively observe and not observe the reference source of
> > photons, we selectively collapse and fail to collapse the wave function.
>
> No, you can't communicate using such a device! This is the original
> EPR paradox, and as has been discussed here recently, Bell's work does
> imply that something strange is going on here. But there are no results
> that I am aware of in standard QM which would allow communication via
> the faster-than-light connections which are often invoked to explain
> the results.
>
> Hal
I thought that scientists had just demonstrated a laser device that
shows an ability to observe a quantum state without influencing the
quanta (i.e. Heisenberg)? Given this, an FTL comm device is possible.
--
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Michael Lorrey
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#!/usr/local/bin/perl-0777---export-a-crypto-system-sig-RC4-3-lines-PERL
@k=unpack('C*',pack('H*',shift));for(@t=@s=0..255){$y=($k[$_%@k]+$s[$x=$_
]+$y)%256;&S}$x=$y=0;for(unpack('C*',<>)){$x++;$y=($s[$x%=256]+$y)%256;
&S;print pack(C,$_^=$s[($s[$x]+$s[$y])%256])}sub S{@s[$x,$y]=@s[$y,$x]}