Quantum Computer

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22 Jul 2011, 3:59 am

Do they exist? I heard this radio personality make a passing comment about how they just came out with the world's first quantum computer. He goes on to say it doesn't use the binary system at the base of its operations.

I googled, but it turns out he's fulla it because I can't find anything. Or is he?

MDM
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22 Jul 2011, 4:05 am

They have existed for a while. They have been released recently. http://www.dwavesys.com/en/dw_homepage.html

Tom_Kakes
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22 Jul 2011, 4:50 am

MDM wrote:

They have existed for a while. They have been released recently. http://www.dwavesys.com/en/dw_homepage.html

Yeah i don't think they are true quantum computers as they don't use individual atoms as qbits. Though the material these processors use has the "spin"like properties of atoms.

http://en.wikipedia.org/wiki/Quantum_computer

MDM
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22 Jul 2011, 5:49 am

My understand is that a quantum computer is a true quantum computer if it uses qbits regardless of the implementation of those qbits.

Tom_Kakes
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22 Jul 2011, 6:39 am

MDM wrote:

My understand is that a quantum computer is a true quantum computer if it uses qbits regardless of the implementation of those qbits.

True... I was just trying to say that these processors are relatively primitive, large scale devices compared to what we will see in the future and not designed as you would classically expect a quantum processor to be designed.

ruveyn
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22 Jul 2011, 8:31 am

CaptainTrips222 wrote:

There are q-bits that work (somewhat). A significant array of q-bits which stays coherent for a significant length of time is yet to be built. Do not hold your breath until quantum computer you can afford is available. The theory is sound but the practice is very difficult.

ruveyn

Tom_Kakes
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22 Jul 2011, 9:41 am

This processor solves those problems:

http://www.bbc.co.uk/news/science-environment-12811199

But as said, its not a "true" quantum device as its using "large" scale materials and not individual atoms.

ruveyn
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22 Jul 2011, 9:58 am

Tom_Kakes wrote:

I will believe it when I see it working effectively. The article said "Hints". That is a spin word which means the technology has not yet arrived.

ruveyn

Tom_Kakes
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22 Jul 2011, 10:11 am

ruveyn wrote:

Tom_Kakes wrote:

I will believe it when I see it working effectively. The article said "Hints". That is a spin word which means the technology has not yet arrived.

ruveyn

Lol, yeah, know where your coming from.

It's basically the abacus of quantum computing.

Ancalagon
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22 Jul 2011, 5:39 pm

Tom_Kakes wrote:

But as said, its not a "true" quantum device as its using "large" scale materials and not individual atoms.

If it uses quantum effects for computation, then it is a true quantum computer.

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Tom_Kakes
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23 Jul 2011, 5:49 am

Ancalagon wrote:

Tom_Kakes wrote:

But as said, its not a "true" quantum device as its using "large" scale materials and not individual atoms.

If it uses quantum effects for computation, then it is a true quantum computer.

Technically yes.

ruveyn
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23 Jul 2011, 8:27 am

Ancalagon wrote:

Tom_Kakes wrote:

But as said, its not a "true" quantum device as its using "large" scale materials and not individual atoms.

If it uses quantum effects for computation, then it is a true quantum computer.

Just like your computer. The working of a transistor is based on quantum effects.

Can you spell tunnel diode?

ruveyn

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23 Jul 2011, 3:12 pm

ruveyn wrote:

Ancalagon wrote:

Tom_Kakes wrote:

But as said, its not a "true" quantum device as its using "large" scale materials and not individual atoms.

If it uses quantum effects for computation, then it is a true quantum computer.

Just like your computer. The working of a transistor is based on quantum effects.

Can you spell tunnel diode?

ruveyn

Let me rephrase, then.

If it uses qubits to compute, then it's a quantum computer.

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androbot2084
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25 Jul 2011, 12:54 am

Quantum computers use infinite amounts of power.

Tom_Kakes
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25 Jul 2011, 5:16 am

androbot2084 wrote:

Quantum computers use infinite amounts of power.

Lol yeah, so would my toaster. If I gave it chance.

ruveyn
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25 Jul 2011, 6:11 pm

androbot2084 wrote:

Quantum computers use infinite amounts of power.

A finite set of q-bits does not require an infinite amount of energy to run.

ruveyn

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