Re: Universal non-point of light

Michael Lorrey (
Tue, 04 Feb 1997 18:24:32 -0500

Anders Sandberg wrote:
> On Mon, 3 Feb 1997, Michael Lorrey wrote:
> > 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.
> I'm not sure what device you are refering to (I'm not that much of a
> quantum person), but there are several mindboggling ways to handle quantum
> information that might appear like this (quantum teleportation, for
> example). But I seriously doubt it would remove the Uncertainty Principle,
> since that Principle is fundamental to QM and we would get some very nasty
> paradoxes without it.
I just read about it in scientific american. What it does is polarize a
laser beam, split the beam, and put one of the splits through a
polarizer at 45 deg from the first, plus some other steps I can't
remember, but basically it allows one to observe without influencing.

Michael Lorrey ------------------------------------------------------------ President Northstar Technologies Agent Inventor of the Lorrey Drive

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