Author Topic: Teleportation Is Real!!! Beleave!!! (Read 508 times)

JoeDirt · « **on:** June 23, 2002, 12:03:30 AM »

lol

i dunno. it sounds wierd....jus look at the website....

teleportaion is possible lol

XNachoX · « **Reply #1 on:** June 23, 2002, 08:29:22 PM »

I CAN SEE DOWN YER SHIRT!

Otto · « **Reply #2 on:** June 24, 2002, 12:16:11 PM »

This guy is mixing Apples and Oranges. What they transported are Photons. Photons are a type of sub-atomic particle with one major exception. They have NO mass; only an electrical charge.

It's a BIG jumb from photons to YOU.

BTW, lets say a Mass Transporter is developed. The only way it could work would be to map your entire atomic structure, send that map to a receiver and recreate you from existing matter at that location.

So, the teleporter 'kills' you at one end and 'resurrects' you at the other? Himmm? What happens to your 'soul' (or whatever you want to call it) How does it get to the reveiver?

Better yet. What if there's a malfunction at the transmitter and your map is sent but your body is not destroyed. Are there now TWO of you?

I don't think this idea will get much past Sicence Fiction.

CyranoAH · « **Reply #3 on:** June 24, 2002, 12:58:45 PM »

One word: Heisenberg

Daniel

Otto · « **Reply #4 on:** June 24, 2002, 01:22:29 PM »

Yes, the Heisenberg Uncertainty Principle would be a factor. The inablity to know both the exact location and speed of a sub-atomic particale is going to make percision in the 'end product' a real challenge. To say the least.....

I'm not going first......

Tumor · « **Reply #5 on:** June 25, 2002, 01:01:00 AM »

Saw some scientist on PBS the other day talking about how they'd already teleported subatomic particles (photons.. like 2 of them or something). He went on to say that teleportation of anything with mass would require some kind of "mapping" ability that, should it be possible to even assemble the data, the size of the database wouldn't fit in the known universe, let alone the computing power requried to do anything with it. Freekin wierd stuff but he did leave the option open lol.

-dead- · « **Reply #6 on:** June 25, 2002, 02:19:40 AM »

Aparently, Heisenberg doesn't get a look in:

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The quantum teleportation experiments at ANU differ from those described in the Physics section in that the ANU experiments involve continuous laser beams, rather than single pairs of entangled photons. Another key difference lies in the properties being examined - phase and amplitude, rather than polarisations; but the basis for the system is still the same (using entanglement to 'by-pass' Heisenburg's Uncertainty Principle).

http://bohm.anu.edu.au/units/public/phys1007/s3296225/research.html

Here's all the publications for those with physics publications subscriptions:
http://photonics.anu.edu.au/qoptics/publications.html

Heisenberg's Principle is "The more precisely the position is determined, the less precisely the momentum is known in this instant, and vice versa."
Momentum is velocity x mass (p=mv), so technically you can know where it is and how fast it's going - but you'd have a very inaccurate idea of how massive it was. (so momentum would still be inaccurate). So in the case of a Photon - which is always travelling at light speed - its position can still be measured accurately, but its mass is a big unknown.

StSanta · « **Reply #7 on:** June 25, 2002, 02:31:46 AM »

You feeble humans shall never master teleportations.

Err, I mean, 'good work, fellow humans'.

niknak · « **Reply #8 on:** June 25, 2002, 01:20:54 PM »

Qunatum tunnelling of particles is a reasonably common phenmenon. But it is due to the laws governing waves at a boundary (reflected and refracted). As such a particle in particular circumstances (a potential well) has a finite probability of moving through the potential barrier (while at no time exisiting in the potential barrier) and emerging the othe side. This is of course for a single particle and it only as a small probability of it tunnelling as such it's hard to see moving whole objects in this manner.

The photon entanglement though is an intresting issue as information is passed at greater than the speed of light (violating general relativity) giving hope for some sort of faster than light travel.

Otto · « **Reply #9 on:** June 25, 2002, 02:42:48 PM »

The photon entanglement though is an intresting issue as information is passed at greater than the speed of light (violating general relativity) giving hope for some sort of faster than light travel.

I've heard about this but it seems like nothing more than 'smoke and mirrors' If you pass informaton at more than the SOL then it has to arrive before you send it.
General Relativity is a 'sanity check' to our three dimensional universe and it works very well. If we are ever going to travel to the stars I doubt it will happen at greater than the SOL but rather some type of warping of Sqace it's self.
Would there be enough enegry in our Sun to even get a Volkswage up to the SOL? I'm not sure.
Anyway, my ideas and a quarter will get you a ride downtown on the bus

majic · « **Reply #10 on:** June 25, 2002, 03:49:51 PM »

"Qunatum tunnelling of particles is a reasonably common phenmenon. But it is due to the laws governing waves at a boundary (reflected and refracted). As such a particle in particular circumstances (a potential well) has a finite probability of moving through the potential barrier (while at no time exisiting in the potential barrier) and emerging the othe side. This is of course for a single particle and it only as a small probability of it tunnelling as such it's hard to see moving whole objects in this manner.

The photon entanglement though is an intresting issue as information is passed at greater than the speed of light (violating general relativity) giving hope for some sort of faster than light travel."

I like cookies.

JB73 · « **Reply #11 on:** June 26, 2002, 12:17:23 AM »

who the f r u guys.. NASA physicists?!?!?!?
lolololololol

Quote

I like cookies.

me too

I Like Chicken Pot Pies!!!

-dead- · « **Reply #12 on:** June 26, 2002, 01:51:28 AM »

Quote

Originally posted by Otto
I've heard about this but it seems like nothing more than 'smoke and mirrors' If you pass informaton at more than the SOL then it has to arrive before you send it.

Nope it's just instantaneous: It arrives the moment you send it. And AFAIK there's been experimental proof of entanglement & Supraluminal communication - Alain Aspect at the University of Paris back in 1982.
And the whole thing is not much of a method of travel - but if you want to talk to Earth while you're on Pluto & can't be doing with a hugely confusing delay of 4-6.5 hours between question and answer, then this would seem to be some pretty cool tech.

niknak · « **Reply #13 on:** June 26, 2002, 07:50:14 PM »

The entanglement of particles was at first suggested as a thought experiment to prove quantum mechanics was nonsense.

If you imagine a particle pair one must have spin up and one spin down. However each photon only has a probability of having a certain spin (this really is a probablility, not as in the photon is not in either state and we just don't know which. It is[B/] in both states). Now move the particles far apart and measue the spin on one of them. If it is spin up the other must be spin down. Does the other particle's state collapse to spin down the moment the other particle is found to have spin up? Bell derived an inequality which could be tested experimentally to see what did happen.

The experiment Alain Aspect performed showed the ineqaulity to be such that the effect did take place faster than the speed of light. This makes Quantum Mechanics a non-local theory (and violates the very principle of general realtivity)

Unfortunatley QM as a non-local theory is based on the assumption of absolute probablilties which are irreducible. There is no mathematical model for this. This leaves the whole question up in the air (unprovable as it cannot be shown there are in fact absolute probablilites). Either QM is flawed or General Realtivity is. The 2 theories do not mesh.

Although certainly offering no clear route to faster than light tavel it shows a (possible?) violation of general relativity giving that hope.

Otto · « **Reply #14 on:** June 26, 2002, 10:00:27 PM »

" Either QM is flawed or General Realtivity is."

That's where String Theory comes in. If it's ever proved it will encompass both QM and GR. They will most likely both be 'correct' but within a larger context.