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[SB] 14-Qubit Quantum Register: A New World Record

post #1 of 23
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Quote:
Quantum physicists from the University of Innsbruck have set another world record: They have achieved controlled entanglement of 14 quantum bits (qubits) and, thus, realized the largest quantum register that has ever been produced. With this experiment the scientists have not only come closer to the realization of a quantum computer but they also show surprising results for the quantum mechanical phenomenon of entanglement.
Quote:
To date, nobody else has been able to achieve controlled entanglement of eight particles, which represents one quantum byte. Now the Innsbruck scientists have almost doubled this record. They confined 14 calcium atoms in an ion trap, which, similar to a quantum computer, they then manipulated with laser light. The internal states of each atom formed single qubits and a quantum register of 14 qubits was produced. This register represents the core of a future quantum computer. In addition, the physicists of the University of Innsbruck have found out that the decay rate of the atoms is not linear, as usually expected, but is proportional to the square of the number of the qubits.
Source

Here is the actual paper from Physical Review Letters

http://prl.aps.org/abstract/PRL/v106/i13/e130506


One step closer to QC and the technological singularity it represents!
Edited by nmdehaan - 4/1/11 at 7:47pm
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post #2 of 23
Cool, pretty soon they will be able to design a computer with 1 kilobyte of memory, and then we will be able to run a small version of DOS really fast.
post #3 of 23
Quote:
Originally Posted by CorkyFan View Post
Cool, pretty soon they will be able to design a computer with 1 kilobyte of memory, and then we will be able to run a small version of DOS really fast.
You need 1MB for DOS.
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post #4 of 23
Quote:
Originally Posted by Manyak View Post
You need 1MB for DOS.
640KB, right?
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post #5 of 23
Quote:
Originally Posted by Manyak View Post
You need 1MB for DOS.
way to age yourself

hahah just playin... this is getting incredible.
    
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post #6 of 23
Really good news, hopefully we'll see this technology mature in our lifetime.
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post #7 of 23
Quote:
Originally Posted by Manyak View Post
You need 1MB for DOS.
Quote:
Originally Posted by lordikon View Post
640KB, right?
The largest you could address was 1MB in the real address mode they used back then, of which 640KBs were used for applications(I think it was 640, not 100% sure)

OT, thats pretty awesome, I'm lovin all the comp advancements the days.
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post #8 of 23
Quote:
Originally Posted by B7ADE View Post
The largest you could address was 1MB in the real address mode they used back then, of which 640KBs were used for applications(I think it was 640, not 100% sure)

OT, thats pretty awesome, I'm lovin all the comp advancements the days.
Ok well technically you only needed 64kB of ram to run DOS, but if you want to actually do anything with it that remotely resembles what we do on PCs now, you'll need 1MB. Even if all you did was open up Lotus 1-2-3, you'd be limited in the size of the spreadsheets you could make.

And yeah you're right about the division of memory. The space between 640kB and 1MB was used for the video memory and other expansion cards.

If you want a good read, you should look up how DOS (and PCs) started managing memory after the first MB. Look up the upper memory area, high memory area, extended memory, expanded memory, and the A20 line.
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post #9 of 23
Quote:
Originally Posted by Manyak View Post
Ok well technically you only needed 64kB of ram to run DOS, but if you want to actually do anything with it that remotely resembles what we do on PCs now, you'll need 1MB. Even if all you did was open up Lotus 1-2-3, you'd be limited in the size of the spreadsheets you could make.

And yeah you're right about the division of memory. The space between 640kB and 1MB was used for the video memory and other expansion cards.

If you want a good read, you should look up how DOS (and PCs) started managing memory after the first MB. Look up the upper memory area, high memory area, extended memory, expanded memory, and the A20 line.
ahhh i feel so young, mostly because i had to Google lotus1-2-3 , its pretty much like excel spreadsheet.

Whats the point of Quantom computers? my guess is that they can run at like terahertz speeds.
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post #10 of 23
Quote:
Originally Posted by Zaid View Post
ahhh i feel so young, mostly because i had to Google lotus1-2-3 , its pretty much like excel spreadsheet.

Whats the point of Quantom computers? my guess is that they can run at like terahertz speeds.
light's speed.
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