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Light-based Quantum Circuit Does Basic Maths
Stochastism writes "In yet another small step toward realistic quantum computing Australian researchers have developed a light based 4-qubit quantum computer. It has already calculated the prime roots of fifteen, three and five. 'The quantum circuit pioneered by the Queensland researchers involves using a laser to send "entangled" photons through a linear optical circuit ... The Queensland research group acknowledged that the theorised code cracking ability of quantum computers may be why Australian quantum computer research is in part funded by a US government defence intelligence agency, the Defense Advanced Research Projects Agency (DARPA).'"
Seven! It does seven maths!
More importantly, can it run Crysis?
Fear the penguin.
In yet another small step toward realistic quantum computing Australian researchers have developed a light based 4-qubit quantum computer.
4 qubits? How much is that in furlongs?
hectares?
The theory of relativity doesn't work right in Arkansas.
I wonder if Moore's law will apply to the number of qubits within a quantum computer as well. A 1024 qubit computer within the next 20 years would be nice.
I was under the impression that we couldn't simply use PHOTONS as qubits - because while photons do have a quantum state, they get all...destroyed.
Of course, the article doesn't help.
Anyone?
I dare you to take that umbrage to the UK or Australia.
Slightly disreputable, albeit gregarious
I really can't tell if you're joking or not. I hope you are.
Parse error! Parse error!
It's just copy pasted from ZDNet Australia, poster didn't change anything. Australia spoke English, last time I checked.
Sorry, wrong. Math and maths are both colloquialisms, and neither is more valid than the other. Just Britith vs American english tendencies, mostly.
http://www.answers.com/maths&r=67
Thanks fo the rant, though.
Actually, MathS is used by the British, Indians and presumably other commonwealth nations.
As a native English speaker living in England could you tell me which part of England says "math" where "maths" is meant?
Or did you mean 'non-native' to mean those speaking the American-English dialect?
liqbase
And I hate it when those damn non-native speakers confuse "chips" and "fries", drive on the wrong side of the road and pronounce things the way that they're spelled.
I, too, have already calculated the prime roots of fifteen, with nearly identical results. Where's my DARPA funding?
I think you'll find those of us who learnt English (that's English, not American English) call it maths - as in Mathematics. Note that lovely S on the end.
The only place in the world I've encountered the word "math" is in North America.
So it's "maths". Go rewrite your dictionaries buddies!
Deleted
mathematics
Doing the "mathematics" or doing the "mathematic" ?
"Non-native English speakers"???
Yeah, like those who live in England, who are sometimes called the English?
In the US it is "Math", in the UK it "Maths". And non-native English speakers are taught British English, not American English, thus the affinity toward the way things are said in England.
There's more Americans who speak English than there are British. Therefore, we win! Majority rule!
I've taken to just calling it just 'American' rather than English.
Q: What kind of room is it kept it?
A: A Qubicle
Q: How big is it?
A: About four Qubit meters.
Q: Qubit? Wasn't that an early arcade game with a little guy jumping around changing the quantum state of a bunch of Qubes?
I have OBVIOUSLY had too much Qaffeine.
Veritas patesco per quaestio questio. Truth is revealed through questions.
If mathematic isn't a word, how do you describe something that has math-like attributes? ie, what type of question would 4+4 be?
Mathematical of course. Because this is English. We don't remove suffixes, we ADD them.
(Pun only moderately intended)
The laws of probability forbid it!
If you are going to be a grammar nazi... don't. Your post is riddled with grammatical errors.
"People who speak very good English"
Should be: "People who speak English very well".
"Almost as bad as "loose" instead of "lose", but non-native English speakers get a pass since they don't know any better."
Should be two sentences without the "but". You have several similar errors involving the word "But".
Additionally, please try to eliminate your use of run-on sentences.
http://brandonbloom.name
... put some gold in there and sell it to celebrities as a calculator
Particles, stuff that matters.
A mathematical question.
Glad to see the moderators take my view, but as the original poster I feel an overwhelming need to reply anyway.
1) Maths is the more accepted UK/Australian version. I'm Australian.
2) The full version is Mathematics, even in US english. Note the s. It's plural. There is no singular version. You can't do a mathematic and so you can't do a math. But hey, I say Lego in stead of Legos, so I can't talk.
You've apparently never taken a look at the lyrics to Waltzing Matilda.
Computerized Australian Technology...until you take a good look at it.
I've calculated my velocity with such exquisite precision that I have no idea where I am.
I once new a guy who could compute the prime roots of 15 in his head.
Patrick Doyle
I mod down every jackass who puts his moderation policy in his sig. Oh, wait a sec....
Soon we will be able to test 2^N possibilities in 2N time, but my question is where does that information come from? There's a lot of hand-wavyness on how that actually happens...
One possibility is that we ask the 'computer' of the universe to do too much computation and end up in an infinite loop, crashed universe, 'dark' part of a mandlebrot-like fractal, etc.
Another possibility is that the 'computer' of the universe will simply abort operations that take 'too long', the quality of our simulation will degrade, and our complex quantum math will result in randomish results.
And then there is the possibility held by quantum researchers that somehow the universe can magically perform any amount of complex computation with no cost at all. "Here a miracle occurs".
Somebody is in for a rude awakening. I hope that is us determining that we run in a simulation and not us finding out we've accidentally sucked the life out of the universe cracking somebody's encryption key.
Correction: Some non-native speakers of English are taught British English, not all. Moreover, British English has not been the standard worldwide for many years, so outside of Commonwealth countries and Europe, people do not, as a rule, gravitate towards British English.
And no, all this has nothing to do with which dialectic is better. It's just sociolinguistics. American English is the premier language of commerce and political power. It's also the medium of a huge amount of popular culture and marketing. Sooner or later, the prestige will shift elsewhere, just as it started to shift away from Britain after WW2. Sic transit gloria mundi.
We should also keep in mind that for some language groups, English s-plurals are particularly challenging, so the "maths" issue gets obscured by its similarity to a huge amount of genuine errors.
Computerized Australian Technology lives.....until you take a good look at it.
I've calculated my velocity with such exquisite precision that I have no idea where I am.
I will add 'statistics' and 'stats' as s similar example.
Please sign petition to restore sanity to our banking system!!!
http://financialpetition.org/
is not an intelligence agency.
And more indians who speak British English than Americans. Epic Fail.
As many people in India speak English than there are Americans who speak English. (source http://bizpr.news.prweb.com/releases/2004/4/prweb116904.htm) Guess which way Indians spell maths?
What they're referring to is quantum entanglement. There's a vast difference between having two independent qubits each in a superposition of two states and having two entangled qubits together in a superposition of four states. It's a subtle, but very important difference.
The laws of probability forbid it!
I guess it's time to stop using 4-bit encryption on my private corespondances. -- PBP (Pretty Bad Privacy) Public Key Follows: 10
Those who fail to understand communication protocols, are doomed to repeat them over port 80.
I don't know what the fuss is.
Maths is an abbr. for mathematics.
My characters statisics
or
My character stats.
Why anybody cares is beyond me.
On the flip side, I am naming my next dog "Mathematic" just so I can use it in a sentences and watch people cringe.
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-- Wanted --
Schrödinger's Cat
Dead and Alive
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Dude, this is nothing. I'm writing from the future to let you know that my MacBook has a processor called the Intel Q-80, an 80-core Intel hybrid quantum/conventional computing CPU. The conventional part runs at 1.5 THz (terahertz) and is a 4-nanometer process running at 0.03 volts. The quantum part is based on a positron spin matrix, and all computations are nearly immediate and reversible. I can convert a 5 TB RedRay (the successor to BluRay) movie to SMPEG format in about 2 microseconds. I can crack a 1024-bit encryption message of 1 TB length in less than half a microsecond. All operations on the computer are incredibly fast, partly due to much faster memory and also to all mechanical hard drives being eschewed in favor of an approach that is faster than DRAM. And most interaction with the computer is through spoken commands a la the Star Trek ship's computer, with spoken feedback in a variety of voices, all sounding as real as a human's voice. When turning on the computer, Mac OS X 10.9 Lion loads instantly. It's as quick as waking the computer from sleep, but from a cold boot. Also, the battery lasts approximately 80 hours with heavy usage. Oh, one final thing. If you get a Dell or HP with exactly the same hardware configuration, it comes with Windows Excalibur (the successor to Windows Ansicht, which is the successor to Windows 2011, which is the successor to Windows Vista). Windows Excalibur is touted as the world's most time-saving operating system, as it takes full advantage of the newest advances in hardware to provide a smooth and lightning fast user experience. As you might guess, studies show that users of an average Windows Excalibur computer spend approximately 0.01% of their time actually interacting with the computer, while 99.99% of the time is spent waiting for it to respond.
Statistics is actually the plural form of statistic.
You could conceivably your character's statistic.
So it's not exactly an apples-to-apples comparison.
How did they manage to fit that potty-mouthed bignose in that little circuit, letalone -four clones- of him?
Oh.. I read "Qbert".
space is pretty cool.
Mathematics is singular, just like Physics and Chemistry. They are individual fields of study. For abbreviations you end up with Math, Phys and Chem.
Realities just a bunch of bits.
Not only is there Britain and India, there's also Australia, New Zealand, South Africa and the rest of the commonwealth - potentially 1.9 billion people! (Although, parts of Canada, I understand, have swapped to the American usage).
=w=
Oh yeah?
Well I have a single Mentos left in my pack of Mentos.
In addition to the math/maths/mathematics issue, American 'English' has a good collection of other atrocities. I've converted a few of the ones I find odd/amusing to British English :
check = cheque (as in money)
tire = tyre
sulfur = sulphur
seeing eye dog = guide dog
thru = through
gasoline = petrol
pissed (angry) = pissed (drunk)
pavement = road
sidewalk = pavement
chips = crisps
french fries = chips (sort of...)
quarter of 5 = quarter past 5
pedestrian crossing = somewhere cars line up to run people over,
especially when turning right on red light whilst making a phone call...
(I was injured last week by an SUV under exactly these circumstances)
Not to mention dates with month and day the wrong way round (MM/DD/YYYY) and words with 's' replaced by 'z', color/colour etc.
Do they ever say arithmatics in England?
In theory, theory and practice are the same; in practice they're different. (Yogi Berra & A. Einstein)
So the truth now equals trolling. Interesting.
Who to go with, the military funded scientists working on a solid foundation of one of the most tested and proven physical theories mankind's best and brightest conceived of and developed with working models or a random blogger who can't get his head around the uncertainty principle.
Well, fair enough, Einstein himself quoted 'God does not play dice' on this very issue, before coming to terms with it. You might have the best of intentions but unfortunately you're off track. Regardless of what anybodies opinion is the quantum uncertainty model accurately predicts all available data, and theories that coincide with empirical evidence are useful and usable no matter how small or great an understanding we have of the underlying processes.
Come up with a simpler theory that fits all the data and I'll gladly accept your claims of crackpottery, otherwise open your mind a little and realise that regardless of a deeper understanding, if the math fits, we can do it, ergo quantum computing is not just feasible, but is already happening as we speak in labs the world over, like the one in TFA.
CRAP! 15 was my RSA public key!
s/prime roots/prime factors/, please. Sheesh.
Yeah, but just because the full word is "mathematics", it doesn't follow that "maths" is somehow more proper than "math". In both cases you're severely shortening the word for the sake of brevity, so why quibble over whether or not the last letter should or should not be dropped, in the light of all the other letters we're so willing to forgo?
If anything, "maths" would have to be a contraction, with an apostrophe indicating the missing letters, but I never seem to hear Brits or other Commonwealth-English speakers argue in favor of that when they're getting righteous over the proper term.
mirrorshades radio -- darkwave, industrial, futurepop, ebm.
The article mentions things called "prime roots." This is not a standard mathematical term. Rather, considering the context, quantum computing, and its most discussed potential application--quantum cryptography--it is likely that what was actually computed were primitive roots.
..., and modulo 5, this becomes 2, 4, 3, 1, 2, .... The first occurrence of 1 is for 2^4, hence k = 4 = 5-1.
For the sake of completeness, a primitive root of a prime p is an integer r such that the smallest positive value of k such that p divides r^k - 1 is k = p-1. For large primes, finding primitive roots is not a trivial task. For example, r = 2 is a primitive root of p = 5, since the positive integer powers of 2 are 2, 4, 8, 16, 32,
Heck, I always liked Johnny Maths.
...Lorenzo / I'm into kinky crustaceans. I just discovered internet praWn.
No truth. You're just the ignorant fuckwad who wasn't aware that the English say 'maths'.
Tubal-Cain smokes the white owl.
The big deal about quantum computers (to me anyways) is that supposedly they can break encryption. That's a bad thing obviously. I'm always confused that when we see these stories about quantum computers that nobody is discussing how much longer it will be before big brother can read all my email even when Im wearing my tinfoil hat!
So what's up with that? I must have some assumptions wrong or the usual sorts would be predicting the sky is falling.
http://www.youtube.com/watch?v=so9o3_daDZw&feature=related
"The Adobe Updater must update itself before it can check for updates. Would you like to update the Adobe Updater now?"
You're not from the future. There's no way that Microsoft will release the successor to Vista before 2014.
It's scary being a Flash and Flex developer on Slashdot. You guys are unnaturally rabid.
Equivalently, your language could be called 'old english.' The language currently using that name will be renamed 'German.'
quarter of 5 = quarter past 5
Not quite.
quarter of ('til) 5 = 4:45
quarter past 5 = 5:15
The Xbox public key was 2048 bits. I'd love to see the end of that once and for all, now that the console is dead. I don't think it'll be possible any time soon, if at all.
I wonder about quantum computing - it could turn out to be the case that fighting decoherence requires energy exponential in the number of qubits. This would mean quantum computing is worthless. It would also be another instance of nature conspiring against those who attempt to break its laws.
"Screw Sun, cross-platform will never work. Let's move on and steal the Java language." - Visual J++ Product Manager
Not directly, but their inventions sure do seem to benefit the intelligence community.
Just -1, Troll talking to another.
Confusing chips and fries can certainly be annoying. How about the word football, it is naturally a game where you try to play a ball with your feet, not a game where you are carrying a ball to the goal (this game should be called armball or something like it).
But when it comes to the driving, you will find that it is the Brits that are driving on the wrong side as the continentals and the Americans are clearly driving on the right side.
"Civis Europaeus sum!"
So that it's obvious that the abbreviation is a plural?
So when are you lot going to get around to stabbing Bush to death?
Real Daleks don't climb stairs - they level the building.
[OffTopic] Who hid all these other maths from me? All this time i thought there was just *math*.
Utilizing the synergization of benchmark e-solutions to pre-workaround action items!
guide dog, quarter past 5, and through aren't used in American English? News to me.\
seeing eye dog is another way to say it, and thru is an abbreviation. I have never heard "quarter of five".
and a pedestrian crossing is called a crosswalk, pedestrian crossing is the british version according to 10^100.
Stupidity is like nuclear power, it can be used for good or evil. And you don't want to get any on you.
In America, you'd be being pedantic
In UKOGBANI, you'd be being pendatics
In Slashdot, it's pedantix
But it's all really the same soup.
In addition to the math/maths/mathematics issue, American 'English' has a good collection of other atrocities. I've converted a few of the ones I find odd/amusing to British English :
check = cheque (as in money)
tire = tyre
</i> OK now both of those are true
<i>
sulfur = sulphur
seeing eye dog = guide dog
</i>
I've seen these both used in many places in the US.
<i>
thru = through
</i>
'thru' is only used by retards and those who have to pay by the letter
<i>
gasoline = petrol
pissed (angry) = pissed (drunk)
</i>
Yeah....
<i>
pavement = road
sidewalk = pavement
<i>
What the fuck are you talking about? those equivalancies make no sense. Maybe you are thinking 'tarmac'?
<i>
chips = crisps
french fries = chips (sort of...)
</i>
I'll give you those...
<i>
quarter of 5 = quarter past 5
</i> not at all.....unless you are making a joke about punctuality. I have noticed no difference in punctuality between the US and UK, but I haven't spent much time in the UK.
<i>
pedestrian crossing = somewhere cars line up to run people over,
especially when turning right on red light whilst making a phone call...
(I was injured last week by an SUV under exactly these circumstances)
</i>
Which country were you in?
But yes, I have had a similar experience...except that a driver went around another car who had stopped to let me cross, and hit me.
<i>
Not to mention dates with month and day the wrong way round (MM/DD/YYYY) and words with 's' replaced by 'z', color/colour etc.
</i>
But you did mention them. The whole date order thing is traumatic. It is true that the American order is illogical. To make dates clear, I format them in a way which the day referred to is obvious, i.e. "15 DEC 2007"
So, I am posting this as 'Extrans' because Slashdot's lameness filter is lame. Attempting to post as html was rejected wit
"Lameness filter encountered. Post aborted!
Reason: Please use fewer 'junk' characters."
Experience teaches only the teachable. -AH