quantum information discussion at last saturdays tacos

Alex Fraser beatnic at comcast.net
Thu Oct 13 14:53:21 CDT 2005

I heard that the DCS (Dept. of Cover Stories) was disbanded ;-)

What happens if string theory is confirmed? 
Will they tax you for the parallel universe property you possess? Who's 
going to survey it?
What about cross membrane law suits? Who has jurisdiction? 
Why does gravity seem to increase as we get older?

Robert Stratton wrote:

> On Oct 13, 2005, at 00:54, hal wrote:
>> A few of us (at one end of the table) talked about
>> what quantum information is about.  I was at a lecture
>> on this subject and was astonished at the new
>> ways of thinking about communications subjects that
>>  we take for granted such as compression,
>> error correcting codes, Shannon's capacity limits
>> and the like.
> It's pretty wild. A year or so ago, I spent some time visiting the  
> single photon detector folks at NIST. They had an optical quantum  
> communications link running across about 2 miles pointed out the  
> window of one of the labs. It took several other beams to align, but  
> once it was set up, it passed bits.
> I'm sure they will cut both ways, but there a number of inherent  
> properties that come for free with this sort of link that would  
> otherwise require boxes of hardware to provide, such as privacy and  
> error correction.
> Having looked briefly at the business side of the "quantum  
> technology" world, I wouldn't run out and buy any _system_ that  
> anyone is selling right now, be it for cryptography or  
> communications. Components, such as single photon detectors, on the  
> other hand, seem to be for real now.
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............ Alex Fraser ............
......... beatnic at comcast.net .......

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