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Building Block Created For Quantum-computing, Secure Communication And Quantum Internet
ScienceDaily ^ | 11.02.04

Posted on 11/02/2004 4:30:38 AM PST by 4kevin

Researchers at the Max Planck Institute of Quantum Optics (MPQ) in Garching, Germany have achieved unprecedented control over the creation of single photons (Nature, October 28, 2004). By using a tightly trapped single calcium ion, localized between two ultra-high reflectivity mirrors, and subjecting it to an external laser pulse, the scientists could emit photons one by one. The emission time and the pulse shape of each photon were completely user-controlled. Remarkably, the device was operated without interruption over a period limited only by the trapping time of the ion, typically many hours. The achievement has important applications in quantum information processing. A controlled quantum interface between atoms and photons has become feasible. In this way, local ion-based operations on quantum states can be combined with long distance quantum information exchange, a key requirement for the implementation of a secure quantum Internet.

(Excerpt) Read more at sciencedaily.com ...


TOPICS: Business/Economy; Culture/Society; Miscellaneous; News/Current Events; Technical; Unclassified
KEYWORDS: communication; quantumcomputing; quantuminternet
Maybe we could have Quantum Voting Machines someday in Fl and Oh ;)

see more science-tech

1 posted on 11/02/2004 4:30:38 AM PST by 4kevin
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To: Ernest_at_the_Beach


2 posted on 11/02/2004 4:33:05 AM PST by Libertarianize the GOP (Make all taxes truly voluntary)
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To: Libertarianize the GOP

We got an election going on!!!!

LOL!!!


3 posted on 11/02/2004 4:38:09 AM PST by ConservativeMan55 (http://www.osurepublicans.com)
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To: 4kevin

What's the big deal? The Illudium Q-36 Explosive Space Modulator already does that!


4 posted on 11/02/2004 4:38:48 AM PST by black_diamond
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To: 4kevin

Probably >< (dodges flying peanuts)


5 posted on 11/02/2004 4:40:11 AM PST by Constantine XIII
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To: 4kevin

Does this have something to do with transparent aluminum?


6 posted on 11/02/2004 4:40:41 AM PST by Rebelbase (Indiscriminate reprisals strengthen the terrorists. Targeted ones weaken them. Aim is everything.)
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To: black_diamond

No big deal here. My computer traps viruses faster than the speed of light......so there!!!


7 posted on 11/02/2004 4:40:43 AM PST by OldFriend (It's the soldier, not the reporter who has given US freedom of the press)
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To: 4kevin

And remember-calcium ions make for stronger and healthier photons!


8 posted on 11/02/2004 4:43:14 AM PST by WestVirginiaRebel ("Vote for Kerry for your own security. I'm Osama Bin Laden and I approved this message.")
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To: WestVirginiaRebel

A new name in software: Heisenberg Anti-Virus ("If you can't find the virus, you can't remove it.")


9 posted on 11/02/2004 4:45:51 AM PST by ZeitgeistSurfer
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To: 4kevin
By using a tightly trapped single calcium ion, localized between two ultra-high reflectivity mirrors...

It figures, it's done with mirrors.

10 posted on 11/02/2004 4:46:55 AM PST by 6SJ7
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To: 4kevin

The importance of quantum computing is that it allows factoring of large numbers. This, in turn, allows cracking of many crypto systems, in particular the widely used RSA public key algorithm.


11 posted on 11/02/2004 5:01:37 AM PST by Lessismore
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To: 6SJ7

Quantum computers will not have cooling devices. They will get better performance by using both smoke and mirrors.


12 posted on 11/02/2004 5:02:55 AM PST by ClearCase_guy (The fourth estate is a fifth column.)
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To: 4kevin

Quantum computers are out of this world.


13 posted on 11/02/2004 5:14:17 AM PST by DManA
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To: 6SJ7

"It figures, it's done with mirrors."


Yeah not smoke and mirrors....smoke is illegal now in most Liberal states!


14 posted on 11/02/2004 7:03:25 AM PST by mdmathis6 (The Democrats must be defeated in 2004)
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To: 4kevin

Oh great, so the probability wave won't collapse into an actual vote until the ballot is looked at...


15 posted on 11/02/2004 7:07:00 AM PST by Axenolith (This space for rent.)
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To: Libertarianize the GOP; RadioAstronomer

What are they gonna come up with next....just marvelous....


16 posted on 11/02/2004 8:45:36 AM PST by Ernest_at_the_Beach (A Proud member of Free Republic ~~The New Face of the Fourth Estate since 1996.)
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To: Axenolith

ROFL!


17 posted on 11/02/2004 8:46:16 AM PST by Ernest_at_the_Beach (A Proud member of Free Republic ~~The New Face of the Fourth Estate since 1996.)
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To: 4kevin

Yes thats fine, but us computer geeks want to know if you can overclock a quantumn computer?

How do you overclock the speed of light?


18 posted on 11/02/2004 10:39:55 AM PST by MD_Willington_1976
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To: 4kevin

read later BUMP


19 posted on 11/02/2004 1:19:23 PM PST by Pagey (Hillary has been eerily silent lately, just like when she ran the War Room in the West Wing in 98,99)
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