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June 16, 2004

Quantum Applications « New Thinking »

Another nail in the coffin of deterministic, Newtonian physics.

Information can pass at speeds faster than light.

Interestingly, it seems simultaneous. It would have an entirely different significance if it could be proved that it were not instantaneous, but still incredibly faster than light.

This is an exciting time for science, I think. I may have to try to get a PhD in Quantum Physics at some point.

Posted by Nathan at 01:43 PM | Comments (7)
Comments

This reminds me of another "foible" of the Gravitational Theory.

"How 'fast' is Gravity?"

There is a current theory that Gravity travels at the speed of light, meaning that an object will not exert a gravitational force on you, until you can see it. (Make sense?)

Personally, I think gravity is faster then light, but like *I'm* going to prove that anytime soon...

Posted by: Jeremy at June 16, 2004 02:44 PM

Thing is, Jeremy, in order for the answer to the question to matter to physicists, there would have to be a theoretical situation in which a gravity well could potentially be made to travel faster than light, so that an otherwise inexplicable lag time could be detected, or not as the case may be.

Matter, of course, isn't the same as information, which is organized energy, so physicists aren't likely to revise their whole notion of the universe based on this one finding.

But if this means one day we'll finally be able to tune in to Galactic Federation News and find out where to send our membership application, that sounds plenty cool to me.

Posted by: McGehee at June 16, 2004 03:06 PM

Well, Kevin, they already had to revise their whole theory of the universe to even consider this experiment necessary.
Sure, information isn't matter, but according to old-style science, even information shouldn't be able to travel faster than light.
From what I understand, this doesn't make teleportation any more likely, because it is more observational than causal.

Posted by: Nathan at June 16, 2004 10:33 PM

<tangent>

Have you by any chance read the books by Ian Douglas: Semper Mars, Luna Marine, and Europa Strike?

This "quantum teleportation" is a factor in one part of the alien technology discovered as the trilogy unfolds.

I'm hoping it turns out not to be a trilogy...

Posted by: McGehee at June 16, 2004 10:57 PM

Oops. I keep forgetting to close tags.

</tangent>

Posted by: McGehee at June 16, 2004 10:57 PM

Never heard of it, actually. I'll go check it out.

Posted by: Nathan at June 16, 2004 11:00 PM

Ah, yes, quantum entanglement moves to the forefront! Can the ansible be all that far behind? If it can be made to work reliably, think of the implications for space exploration. No 'speed-of-light' time delay between Earth and robot probes, making real-time tele-operation and tele-presence a reality.

Posted by: DCE at June 17, 2004 10:06 AM
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