I've read, albeit briefly about quantum computing. It's quite fascinating. Another less abstract construct in computing might interest you as well:
http://www.dailytech.com/New+DNA+Com...ticle21811.htm
I have to admit that I know next to nothing about the particulars but the concept fascinates me to no end.
Thanks. I've read about it a few days ago when it was announced. It's 'neat' but it basically comes to replicate the current deterministic computing model. Quantum mechanics actually turns the entire computing model around. It's hard to wrap your head around when you're coming from the classical model, but once you understand the implications both from computing and communications, it's huge. It really is a quantum leap, no pun intended
If such a concept would work faster and without replication, it would be awesome.
Found a clearer image of the gate circuit:
The big hope is that quantum computing might be able to solve np-complete problems. The jury is still out on that though, last I checked.
http://arstechnica.com/science/news/...hard-maths.ars
Good article with a solid explanation of decoherence and entanglement.
A quote from it:
This brings us, finally, to a current PNAS paper by researchers at Columbia University and NEC Laboratories who have investigated the problem-solving abilities of adiabatic quantum computers. What they have shown is that, when adiabatic quantum computers are used to solve NP-complete problems, the energy gap between the lowest energy state and the next state up is not well behaved. Instead, it narrows faster than exponentially, meaning the adiabatic quantum computing cannot, even in principle, solve NP-complete problems faster than a classical computer.
What makes this work special is that it is more general than the papers that precede it. Rather than focusing on a specific problem, the researchers looked at the statistics of how the energy gap behaves. They found that adiabatic quantum systems exhibit properties very similar to disordered quantum systems.
Interesting. I wonder what degree of autocorrelation exists there and if it's been investigated.
Physicists from all walks are turning towards adiabatic systems/processes as an investigational tool. In MRI, we utilize adiabatic pulse sequences to better suppress the signal from fat which can be quite pesky and tricky to deal with otherwise:
http://www.medical.siemens.com/sieme...MR_imaging.pdf
You can think of this generically as removing a confounding variable. I know that in regard to quantum energy states, the iterative processes used for computations serve as an additional variable as well. Why? Well because the act of taking a measurement perturbs the system. Those perturbations add up and lead to decoherence.
I believe the trick is in the measurement process. Yes the energy states don't tend to cooperate, but the approach should be to eliminate confounding variables one by one. Since the adiabatic approach didn't yield fruitful results, perhaps an overhaul of measurement methodology is in order.
I'll probably spend a good chunk of my vacation time reading about these new computers. Good stuff.
Nerd!
Then again, that's probably why you make more than me
Honestly though, arstechnica is a fun site. You should look around in it.
That obvious eh? I should have stated that I'd do it over a glass of Hennessey VSOP and a stogie for the right touch of cool
Then again, that's probably why you make more than me
Honestly though, arstechnica is a fun site. You should look around in it.
I'll do that. Seems like there's a wealth of ideas floating around in there. With the right motivation anythings possible.
As for making more, that's probably due more to luck and cir stance than anything else. How does that phrase go? "I'd rather be lucky than good.....".
No hate.Once I retire from the military and get relatively cheap health care for life, I'll probably be as wealthy (relatively speaking) as a millionaire when health care costs double and redouble in the next few years.
...until the government cuts your benefits because they cant afford it, either.No hate.
That won't ever happen! I'm going to plug my ears now and go LA LA LA LA!
Although speaking truthfully, I doubt politicians will ever have the balls to really screw with soldiers medical benefits too much. Maybe increase copays, but anything drastic would probably look bad for the politician who tried it.
At the least, they should grandfather in any changes.
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