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I'm one of the English contingent. Teleportation would be a great way of getting them over the puddle!

africandan - I thought that quantum entanglement “enabled” teleportation.

Take that photon for example. At any time, it has a finite number of quantum states – each one has some value. Suppose that two photons, one photon at place A and the other at place B, share an entangled state of polarization. I’ve read that it is possible to perform an operation on the photon in place A that will transform the photon in place B into one of two states, depending on the two possible outcomes of the operation at place A: either polarized, or an unpolarized state that is related back to A in a definite way.

After the operator at place A communicates the outcome of the operation to place B, the operator at place B knows either that the two photons are the same, or how to transform the local photon to the same state as that in place A by a local operation.

The way I understand this is that the operators in place A and B have managed to use their shared entangled state as a quantum communication channel to destroy the polarized state of the photon in place A’s part of the universe and recreate it in place B’s part of the universe.

Now, if an observer cannot distinguish between the photon in place A and place B, then isn’t it reasonable to argue that the photon on place A has ”teleported” to place B?

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You're right.

And they did it back in the 50's and you get this.

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It enables the teleporting of photons, yes. But as in my previous post - this doesn't help teleporting humans. For exactly the reasons I said.

Firstly, humans don't experience quantum effects - they're too big, they simply don't have different quantum states in the way photons do. And cannot be changed from one sort of human into another.

Secondly, you'll note that the example you give of teleporting photons requires two photons already to exist. For the equivalent in human teleportation you would require two humans who are then made indistinguishable. But the type of teleportation that we want sends one human from one place to another - and preferably doesn't alter them in the process.

So whilst quantum entanglement can enable the impression of teleporting photons, it can't even enable the actual teleporting of a single photon let alone the teleporting of a Pixie lady into my room.

If they finally figure out how I can teleport Pixies men straight into my lair/dungeon/web and they have penises the size of flies I am gonna be one pissed mother fucker

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PalaceGuard,

Sir. You Rock!

While I opened the subject, I did so with the qualification that the needed engineering was unrealistic. I also have a theoretical problem with the process.

The uncertainty principle limits the accuracy that you can measure the position of a particle to be a function of its momentum. It order to measure the momentum of a proton, for example, precisely, you need to renounce all knowledge of the proton’s position. Given that the number of proton’s in a human is approximately 10^26, the resulting loss of information would render the transformation useless.

As for the engineering, assuming that each proposed measurement could – in principle – be carried out, you’d still have to perform 10^26 measurements in 3 seconds or so, if we are to retain the Star Trek metaphor. That’s not CPU clicks now, that’s real world measurements. Further, you’d have to pre-establish 10^26 entangled pairs before the teleportation could occur.

There’s no way that could be done in real time.

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I think some people have far too much time......lol

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It's a BOY!!

:grin: :grin:
:grin:

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just goes to show you never can tell what's gonna happen next...ever.

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Trees give peace to the souls of men * Nora Waln

The forest would be very quiet if no other birds sang than those who sing the best * Henry van Dyke

some fairly sordid tales, rambles, and anecdotes
Hypothetically Speaking * Something More * Cammy Interrupted * An Experimental Vacation * Masked * so..damn..hot * Thank You * My toy, his idea * no.19 Maple Lane * I Have A Surprise For You * Yesterday * In a Quiet Kitchen * help me decide * untitled prose * more untitled prose

Indeed, the sun may not rise tomorrow.... but I bet that it does!

jseal - I agree that the engineering needed for teleportation is overwhelming. I don't think Dr. Heisenberg would stand in the way of this process.

The uncertainty principle can be stated as

uncertainty in position (X) multiplied by the uncertainty in velocity (V) > h/m

Where h is Planck’s constant and m is the mass of the particle.

In the quantum world, each measurement changes the system. To measure the position of the object will introduce an uncertainty in the velocity, and vice versa. This is what it means to have the number on the right side of the equation not equal to zero. As the uncertainty in one variable (V) approaches zero, the uncertainty in the other (X) must increase to keep their product greater than h/m.

Here’s the point: at room temperature, the thermal vibration of the atoms in anything to be teleported creates a sufficiently large X that V can be very small.

As for the engineering, I’m less concerned with the count of the particles that need to be entangled as to the fact that the values of many quantum states must be captured simultaneously for the teleportation to be effective. As I mentioned above, each measurement changes the system being measured. It would be inaccurate to claim that useful measurements cannot be made, but they would be tricky. In all likelihood, the sum of the X * V would be small enough for uncomplicated objects. For dynamic objects like the brain, where the state of the system could change while the measurements were being made, I doubt that what would be received would be identical to what was sent. I sure wouldn’t volunteer.

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and if i was around and able to witness it...wouln't that be somethin'!!

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Trees give peace to the souls of men * Nora Waln

The forest would be very quiet if no other birds sang than those who sing the best * Henry van Dyke

some fairly sordid tales, rambles, and anecdotes
Hypothetically Speaking * Something More * Cammy Interrupted * An Experimental Vacation * Masked * so..damn..hot * Thank You * My toy, his idea * no.19 Maple Lane * I Have A Surprise For You * Yesterday * In a Quiet Kitchen * help me decide * untitled prose * more untitled prose

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R.I.P.

DAM THE MAN!

BIGbad,

That is what happens with quantum entanglement.

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Eudaimonia