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Anyone for quantum chess?
That’s just showing off

AS IF CHESS wasn't already hard enough, boffins at Queens University have added a quantum dimension.

According to CBC news, an undergraduate at Queens University is playing her chess quantum physics style. Sounds like attention seeking behaviour to us. But it turns out that geek girl Alice Wismath - yes, that's really her name - wrote a quantum chess program based on a paper her professor Selim Aki had written.

The program was written to create a state of constant flux for every chess piece on the board. The idea is to make it much harder for computers to logically read the outcome of every move on the table.

So applying the principle of superposition in quantum physics, a piece can exist simultaneously in several states, meaning a pawn can be a king, horse or any other piece on the board. Sounds more like chaos theory and it might as well be backgammon or draughts instead.

However, the programmer hasn't thrown the chess rulebook out the window. Apparently, there are certain guidelines you must follow, if you can follow them, and it's possible to apply strategies using the program.

In this game boffins have to capture the King, which can't morph or it could well be the longest game of chess ever played. The chess pieces also don't morph randomly at any point during the game. They only reveal their new state when they land on the black squares.

The team is planning to make it even more complicated, using mind-blowing quantum physics rules. µ

Wed 08 Sep 2010, 14:37
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Comments
@Rocket_surgeon

Just incidentally back here, hope you return too.

The universe not only works by magic, but *is* magic. However, whether it can be manipulated under human control doesn't look likely. You make *assertions* without considering what's practical. That's the definition of fantasy.

You blithely "scale up" quantum effects to implications at large-scale, which is nowhere yet demonstrated, or even considered outside of fantasy factories (physics departments, for example). There's supposedly a chance that all the atoms in the chair I'm sitting on will suddenly move away from each other, or simply vanish, but in the entire universe, the chances are so low that it has *never* occurred. Reality at the visible level is stubbornly consistent.

You seem to think it's going to be possible to "trick" your way around known large-scale laws of physics, but all conceived methods for doing so require incomprehensible amounts of energy. There's not even a way for us to get hold of the amounts of material needed, since the large masses of it are all literally flaming hot.

But let's stick to the amazing "abilities" of the Star Trek teleporter (STT): It can beam material objects to any point, presumably within some maximum distance -- but never to within another object (besides air, I guess), even though distances are constantly changing. It can also *fetch* an object. It re-creates the original object with apparently perfect accuracy including whatever thoughts a person is having at the time. This implies zero noise in the electronics AND a complete lack of quantum noise. The original object disappears. (Though I think there was an episode in which there were two Kirks for a while.) Also, the STT destroys matter in one place and re-creates it in another, without the least disturbance of the surroundings.

The laboratory instances require a special receiver already in place. That's incomparably easier than the STT. Also, the expenditure of power -- total, of the equipment -- is incomparably larger than that for the actual "transmission" of the few photons, and doesn't look likely to scale well. I don't have ready references (since don't care: try Wikipedia), but the theoretical possibility of matter transmission is thought to require the energy of many *suns*.

Reading this over, I see an inherent tangle: IF quantum effects allow matter transmission, THEN how do you avoid quantum effects introducing noise into that very transmission and ruining it in practice? By your own logic, you can't ever obtain perfect reconstruction, so it's useless.

posted by : bigger_luddite, 14 September 2010 Complain about this comment
Investigationing

@bigger_luddite

Okay you first. Pretty sure quantum physics isn't sheer fantasy. Everysingle thing you currenly use in your daily life, from phones to computers to TV's to wireless to pretty much every advance made in th e last 100 years was made possible solely due to the theory of quantum electrodynamice, or QED. So far since it's inception there has not been a single observation or experiment made that disagrees with it. It has, in fact - gotten more accurate as our ability to measure it to finer decimals shows us it has always been that accurate. and teleportation is the very definition of a "real possibility" as It is A: a part of reality, hence - it is "Real" and B: QED, and almost every other theory of physics states that it must be possible, as reality could not function aa it does without it. so not only is it possible, it's a fundamental process. given sufficient time and gains in technology and theory - of course it will happen. it would be stupid to think it wouldn't. they have already successfuly teleported photons in a lab enviroment.
Also, These modern "scientists" as you call them are modern "Physicists"
You despair for any real advances from future generations? i believe advancement is increasing almost exponentially with each generation.
Seriously. where have you been for your entire life up until now?

Or be you Troll?

posted by : Rocket_surgeon, 10 September 2010 Complain about this comment
Teleporter

Since we're in SciFi...and its Friday...In the thirties in Germany there was a flurry of publications for unified field theories whose main common point was torsion or rotation. In 36 the Nazi classified everything and the publications stopped. However in the states Gabriel Kron was one of the guys that relayed that this stuff could be engineered. There was an experiment where 2 high voltage AC coils stacked one on top of the other running alternatively to each other and had high DC pulsed in the center of both produced very weird results from which movies were made. This was the basis of the teleporter amongst other things, like new propulsion method. Another way was to rotate two drums stacked on top of each other pulsing high dc in the center and each drum contains mercury, iron powder and an isomer of thorium, and these deums are counter spinning with a huge magnetic field to spin their guts. All this is technically still Heretical Works of course and so please do burn me down. However if you have money try it!

posted by : Dun, 10 September 2010 Complain about this comment
It's like DND fantasy: what appears to be a kitten,

may turn out to be a 30th-level weretiger.

This is sheer fantasy, and it's always easier and more fun than gritty, stubborn reality. It's all that modern "scientists" can handle. That's one reason why I despair of any true advances from current and future generations. Kids nowadays seem to take the Star Trek "transporter" as a real possibility, when it's actually just a convenient dodge for a television production.

posted by : bigger_luddite, 08 September 2010 Complain about this comment