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Australian Researchers Devise Fault-Tolerant Quantum Computer
schliz writes "Researchers have devised a theoretical quantum computer that could function even if one in four qubits were missing. The design is claimed to be the first that tolerates both qubit loss and decoherance to this extent. It performs calculations by measuring, rather than manipulating qubits, so there are fewer points of failure."
I have devised a theoretical hyperdrive that could work even if one out of every four of the reverse power flux couplings were on the fritz.
Alas, my discovery didn't make the front page of /., because I am not Australian.
is that with a quantum computer you're never sure you got the right answer. With my current computer, I can be.
Slashdot mods are as bad as Wikipedia admins, you roll in your own shit while playing with your openbsd boxes thinking that emacs gnome wm will beat windows one day. Fuck you.
So, they're saying it can run Windows?
The cats have to be replaced or not replaced as needed.
I think PETA will have problems with it, but the NSA doesn't care.
Oh sure, it's fault tolerant... until you look at it.
#fuckbeta #iamslashdot #dicemustdie
3 bad Uncertainty Principle jokes already. I predict at least 50 more. Dupes count (obviously).
I just pooped your party.
Announcer: "...Number 3, in a quantum finish!"
Farnsworth: "No fair! You changed the outcome by measuring it!"
Sometimes I doubt your commitment to Sparkle Motion.
How about "quantum MITMs"?
Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
I recall hearing a talk about how to do fault tolerant quantum computing already six years ago. The main points I remember from the talk was that there was a theoretical limit to how much redundancy you could introduce as if you could reconstruct from half the qubits then you could clone the state, which is known to be impossible. I don't remember how large the gap was between the upper and lower bounds were, but they proved that at a certain error rate their redundant construction would improve the error rate, and could be applied multiple times to get even better error rates.
Do you care about the security of your wireless mouse?
Comment removed based on user account deletion
Arxiv link
The problem here is the one fault it's not tolerant of is that it isn't even close to being a practical quantum computer, and so lands squarely in that magic world with all the high efficiency solar cells, nanotube based ultracaps, and the myriad of medical discoveries, of which only a very, very few actually make it to market -- the rest are dead ends, for whatever reason. I am actually beginning to find these announcements a little depressing. Either there's something really wrong with our "get it to market" system, or there's an awful lot of bullcrap out there. Neither answer is good.
I've fallen off your lawn, and I can't get up.
And what am I, chopped liver?
coding is life
"The design is claimed to be the first that tolerates both qubit loss and decoherance to this extent."
Can we check on the cat now?
I am the unwilling control for my Origin.
My iPod will sync before I plug it in?
a new implementation of the "she'll be right, mate!" algorithm, or the "no wucken furries!" paradigm?
Noooahhhhh. Nooaahhh...
This is the Lord, Noahhhhh.
riiiiiiiiiiiight.
Ice Cream has no bones.
Market share of Linux has fallen to a new low today as ubuntu users find out that they can get laid by installing Windows 7.
Slashdot, creating virgins since 1997.
If this were about American scientists,
Einstein's face would show up beneath the summary.
But as it is about Australian scientists,
the Aussie hat shows up.
Why can't Aussie scientists be just taken seriously
as normal scientists? After all, it's long since
Australia was a colony of prisoners.
And no, I'm not an Australian.
can we use a number of fully commuting operators, to measure different states of a system, then the uncertainty principle wouldnt apply as the inequality relates to the anticommutator.