10 Pb/sec? Re: IB vs Myrinet
csamuel at vpac.org
Wed Nov 5 00:30:35 EST 2003
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On Wed, 5 Nov 2003 03:05 pm, Robert G. Brown wrote:
> On 4 Nov 2003, Patrick Geoffray wrote:
> > But what about this twin photon spin stuff ? You send a photon, you keep
> > his twin brother and when you spin the second one, the first one spin
> > the same way a few thousand miles away....
> Oooo, don't get me started on EPR. All I can say is no, no, and no.
> Can't describe relativistic phenomena with non-relativistic physics, and
> you can't "spin one photon one way" and do anything at all to the other
> thousands of miles away.
I think he's talking about things like using entanglement for crypto key
exchanges, etc, which has already been done.
Jan 2001 - DERA Scientists achieve world record 1.9km range for free- space
secure key exchange using quantum cryptography.
My favourite quote:
To avoid air turbulence effects the experiment was carried out over an
elevated path with the receiver on the DERA Malvern site and the
transmitter located in a rented room in a conveniently situated pub on
the side of the Malvern hills.
These are smart cookies working on this, John is an Institute of Physics medal
Christopher Samuel - (03)9925 4751 - VPAC Systems & Network Admin
Victorian Partnership for Advanced Computing http://www.vpac.org/
Bldg 91, 110 Victoria Street, Carlton South, VIC 3053, Australia
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