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Theorists Make Quantum Communications Breakthrough
KentuckyFC writes "One of the cornerstones of modern physics is Claude Shannon's theory of communication, which he published in 1948. If you've ever made a phone call, watched TV, or used a computer, you've got Shannon to thank for describing how information can be moved from one place in the universe to another using an idea called the channel capacity. But nobody has been able to develop a quantum version of this theory. So physicists have no idea how much quantum information can be sent from one point to another. Now two American physicists have made an important breakthrough by proving that two quantum channels with zero capacity can carry information when used together. That's interesting because it indicates that physicists may have been barking up the wrong tree with this problem: it implies that the quantum capacity of a channel does not uniquely specify its ability for transmitting quantum information (abstract). And that could be the idea that breaks the logjam in this area."
Now two American physicists have made an important breakthrough by proving that two quantum channels with zero capacity can carry information when used together.
So who wants to join my class-action lawsuit against math teachers?
When you use quantum encryption, the theorists win !
\u262D = \u5350
It was called ISDN.
I thought it said "Terrorists Make Quantum Communications Breakthrough".
I c u d h l w t q a t m r p o r p y
h h t o n s i e g e t d a
t o l e p i h u n u c y t g a h .
RS
Shoes for Industry. Shoes for the Dead.
Oops, too late. You're entangled!
Bruce Perens.
The summary didn't have any information on what a 'zero capacity channel' was. If I read it a second time, will I understand?
Have gnu, will travel.
Does the data really have to be copyrighted for that to work?
I have DirecTV. That gives me something like six hundred channels which have zero intellectual capacity but yet still manage to carry data.
Harry "Hello Jim Im ringing you back regarding the message you left on my voice mail." Jim "What message ? I hevent left one yet" Harry "Aw crap I did it again, I will never get my head around our new quantum telephone system"
You fools! You've gone and changed the article by clicking the link.
PHYSICIST!
you outed yourself!
Observers have indeed changed the state of the target to dead.
Because quantum information can be negative it would seem this theory could be applied to make a channel with 0 negative capacity have some cpacity from nothing in the same way.
So really any extra positive capacity could be cancelled out.
...and if I combine your post with a random pad of 1s and 0s, will I get something that has anything to do with TFA?
I read Usenet for the articles.
You can extract immense amounts of information from the combination of Fox News (channel 0 with no signal) and the White House Press Secretary (channel 1 with no signal).
Anything in common is a lie, and that is useful information.
You are being MICROattacked, from various angles, in a SOFT manner.
Mod parent plus and minus one!
Meaning two blondes make a brunette?
Only if they are of different gender, and with 25% chance :-)
Like putting too much air in a balloon! :-D
Observers have indeed changed the state of the target to dead.
Odd.....I just looked and it was alive......
Links in Slashdot are simultaneously dead and alive! Clicking on them decides which ;)
don't worry, scientists also discovered that two people who don't understand quantum mechanics can engage in a meaningful conversation on the subject
> We'll have human sacrifice, dogs and cats living together... mass hysteria!
you mean like Los Angeles ?
MP3 Search Engine
I'm going to name my next cat "TFA" and then I can say he "slashdotted the couch"
Yeah, I mean look at that bitchin' goatee Freeman is sportin'!
Random Thoughts From A Diseased Mind (Not For Dummies)
As soon as I opened this article my cat died of cyanide poisoning.
Is anyone else having this problem?
"Just saying, it needs to be taken with a grain of salt."
This is SLASHDOT. Everything here should be salted, marinated in salt water, then baked in an encrustation of rock salt for 8 hours before consumption.
-Styopa
Let's not forget the crowbar.
How are sites slashdotted when nobody reads TFAs?
Just don't take your cat to any Eastern bloc countries. In Soviet Russia, TFA slashdots YOU!