Quantum Computer

Page 1 of 3 [ 35 posts ] Go to page 1, 2, 3 Next

Joined: 30 Mar 2009
Age: 42
Gender: Male
Posts: 3,100

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
Snowy Owl

Joined: 30 May 2010
Age: 30
Gender: Male
Posts: 126
Location: Montana, USA

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
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Snowy Owl

Joined: 30 May 2010
Age: 30
Gender: Male
Posts: 126
Location: Montana, USA

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
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Veteran
Veteran

Joined: 21 Sep 2008
Age: 87
Gender: Male
Posts: 31,502
Location: New Jersey

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
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Veteran
Veteran

Joined: 21 Sep 2008
Age: 87
Gender: Male
Posts: 31,502
Location: New Jersey

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
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Veteran
Veteran

Joined: 25 Dec 2007
Age: 45
Gender: Male
Posts: 2,302

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.

_________________
"A dead thing can go with the stream, but only a living thing can go against it." --G. K. Chesterton

Tom_Kakes
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Veteran
Veteran

Joined: 21 Sep 2008
Age: 87
Gender: Male
Posts: 31,502
Location: New Jersey

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

Ancalagon
Veteran
Veteran

Joined: 25 Dec 2007
Age: 45
Gender: Male
Posts: 2,302

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.

_________________
"A dead thing can go with the stream, but only a living thing can go against it." --G. K. Chesterton

androbot2084
Veteran
Veteran

Joined: 23 Mar 2011
Age: 62
Gender: Male
Posts: 3,447

25 Jul 2011, 12:54 am

Quantum computers use infinite amounts of power.

Tom_Kakes
Deinonychus

Joined: 15 Jul 2011
Gender: Male
Posts: 342

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
Veteran
Veteran

Joined: 21 Sep 2008
Age: 87
Gender: Male
Posts: 31,502
Location: New Jersey

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

Page 1 of 3 [ 35 posts ] Go to page 1, 2, 3 Next

Jump to:

Quantum Computer Post Reply New Topic

Quantum Computer