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Offline DoctorBeaver

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Quantum computing
« on: 11/12/2005 02:43:09 »
I was reading about this earlier. It seems that a quantum computer could perform 50 trillion zillion squillion calculations in the blink of an eye but there are some basic problems to iron out.
1) Apparently it could collapse halfway through.
2) The answer it gives may or may not be right.
3) The answer can't actually be read anyway as this would interfere with the quantum aspect of it.
4) There's difficulty working out a way a quantum computer more powerful than an zx80 could actually be built in the 1st place.
But, if all those problems can be sorted, it could be quite an interesting development.


 

Offline ukmicky

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Re: Quantum computing
« Reply #1 on: 11/12/2005 03:22:57 »
And imagine the games:D

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Offline DoctorBeaver

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Re: Quantum computing
« Reply #2 on: 11/12/2005 13:42:30 »
A quantum XBox... virtually bug-free! :D
 

Offline chris

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Re: Quantum computing
« Reply #3 on: 11/12/2005 21:04:23 »
Not entirely true  Dr Beaver

Quantum computing can be viewed as the next dimension in computing. That's because computers use binary - 0 or 1 - or Black and White - to compute. To maintain the black and white analogy, quantum computing offers all the greyscale between these two extremes too.

If you have a listen to the Nature Podcast this week it contains two interviews with scientists who have demonstrated that it is possible to produce, transmit, store and retrieve a single photon encoding information. This is the first step to making such a quantum computer a reality.

http://www.nature.com/nature/podcast

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Offline DoctorBeaver

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Re: Quantum computing
« Reply #4 on: 11/12/2005 22:57:03 »
Chris - I know. I was just being a wee bit facetious
 

Offline chris

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Re: Quantum computing
« Reply #5 on: 12/12/2005 15:23:36 »
Eth - I know - I was just trying to indulge in some shameless self-promotion...;)

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Offline Soul Surfer

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Re: Quantum computing
« Reply #6 on: 14/12/2005 08:14:23 »
Although quantum computing does posess the properties that are given for it I feel that many statements of its potential power are rather overblown  the quantum states get more and more fragile as you increase the number of Qbits so you have to isolate your quantum material more carefully.  OK progress in conventional computing power during my lifetime has been almost unbelievable following moores law for the whole time but progress in building analogue to digital converters has been somewhat less spectacular but still very considerable. The trchnologies of A/D converters are more likely to be the way quantum computing improves rather than moores law.

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Re: Quantum computing
« Reply #6 on: 14/12/2005 08:14:23 »

 

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