Quantum entanglement breakthrough

[dystopian]

Not everyone believes the no-communication theorem is going to hold up forever. And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

 

[Kharakov]

Not everyone believes the no-communication theorem is going to hold up forever.

The observation of a law that supersedes relativity like relativity supersedes Newtonian mechanics could occur.

There is no specific reason that a law cannot exist outside of the framework of relativity that allows faster than light information transfer. The no communication theorem relies on the observation that quantum states are observed, not set through observation. Perhaps we will find a way to observe certain states in one particle, that allows us to force the other particle into another state.

In this case, our forced observation of a specific state would determine the state of the other particle. Then a non-forced observation of the other particle would allow information to be extracted over a distance.

And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

Just because one theorem is overturned, doesn't mean others will be.

 

[Underseer]

That's nice. Something determined remains determined over time and space. Fascinating discover that.

It's nice to find people with worse reading comprehension than even myself.

 

[dystopian]

Just because one theorem is overturned, doesn't mean others will be.

Some of these theorems seem to *rely* on the other theorems being correct though; in which case it kind of does.

 

[Kharakov]

Just because one theorem is overturned, doesn't mean others will be.

Some of these theorems seem to *rely* on the other theorems being correct though; in which case it kind of does.

Yeah. I don't think the no cloning theorem has been overturned.

I'm not even sure the no-teleportation theorem has been overturned- they didn't construct the quantum state, they detected one state, and that showed them what the other state was.

 

[none]

Not everyone believes the no-communication theorem is going to hold up forever. And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

Maybe I am not understanding the theorems...
But is broadcasting the "information" to one recipient different than broadcasting the "information" to two recipients?
Didn't these researchers only broadcast to one recipient?
Or is the state of the source also considered a recipient when looking at the end result of transmission?
Also I don't know if I should have qualified the word information, I am guessing that information is spin or some other property.

 

[ryan]

Teleportation Is Real

In what way is this teleportation?

It's teleportation of information. In other words, information is transmitted without passing through space.

The information transfer is instantaneous, instead of taking place at the speed of light or slower. Information doesn't pass through space at greater than c without entanglement or telepathy.

When and where was it shown that information is transported faster than c?

Second the question, I was of the understanding that this is impossible with our current understanding of physics - would love to see it proved wrong though.

Why would you want to see it proved wrong?

 

[Kharakov]

Not everyone believes the no-communication theorem is going to hold up forever. And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

Maybe I am not understanding the theorems...
But is broadcasting the "information" to one recipient different than broadcasting the "information" to two recipients?
Didn't these researchers only broadcast to one recipient?
Or is the state of the source also considered a recipient when looking at the end result of transmission?
Also I don't know if I should have qualified the word information, I am guessing that information is spin or some other property.

I think that if both parties detected the state of the particle at the same time by arranging to do the measurement at the same time, they would know the information that the other party detected before the information could be transmitted to them using methods constrained to relativistic speeds of information transferal.

 

[Narapoia]

Teleportation Is Real

In what way is this teleportation?

It's teleportation of information. In other words, information is transmitted without passing through space.

The information transfer is instantaneous, instead of taking place at the speed of light or slower. Information doesn't pass through space at greater than c without entanglement or telepathy.

When and where was it shown that information is transported faster than c?

Second the question, I was of the understanding that this is impossible with our current understanding of physics - would love to see it proved wrong though.

Why would you want to see it proved wrong?

Because as a scientist new physics (enven though not my field) would be incredibly exciting. As a fan of science fiction I'd love to know there is some way around the ultimate speed limit of light to better suspend disbelief during stories with lots of FTL travel and communication. As a humanist and futurist, new physics in which FTL anything is permissible opens up possibilities for expanding into the galaxy that I feel we will not have with our current understanding of physics, for a number of reasons (Technological, political, economic and environmental amongst them)

 

[ryan]

Second the question, I was of the understanding that this is impossible with our current understanding of physics - would love to see it proved wrong though.

Why would you want to see it proved wrong?

Because as a scientist new physics (enven though not my field) would be incredibly exciting. As a fan of science fiction I'd love to know there is some way around the ultimate speed limit of light to better suspend disbelief during stories with lots of FTL travel and communication. As a humanist and futurist, new physics in which FTL anything is permissible opens up possibilities for expanding into the galaxy that I feel we will not have with our current understanding of physics, for a number of reasons (Technological, political, economic and environmental amongst them)

Ohhh, I thought you meant that you would want to see the experiment proved wrong.

 

[none]

Not everyone believes the no-communication theorem is going to hold up forever. And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

Maybe I am not understanding the theorems...
But is broadcasting the "information" to one recipient different than broadcasting the "information" to two recipients?
Didn't these researchers only broadcast to one recipient?
Or is the state of the source also considered a recipient when looking at the end result of transmission?
Also I don't know if I should have qualified the word information, I am guessing that information is spin or some other property.

I think that if both parties detected the state of the particle at the same time by arranging to do the measurement at the same time, they would know the information that the other party detected before information could be transmitted to them through spacetime using methods constrained to relativistic speeds.

so, what does this mean?
are you saying the state of the particle isn't cloned, just a prior state is passed along?
I could agree that it was a prior state, but if enough prior states are passed along could a molecule be formed?

 

[Narapoia]

Second the question, I was of the understanding that this is impossible with our current understanding of physics - would love to see it proved wrong though.

Why would you want to see it proved wrong?

Because as a scientist new physics (enven though not my field) would be incredibly exciting. As a fan of science fiction I'd love to know there is some way around the ultimate speed limit of light to better suspend disbelief during stories with lots of FTL travel and communication. As a humanist and futurist, new physics in which FTL anything is permissible opens up possibilities for expanding into the galaxy that I feel we will not have with our current understanding of physics, for a number of reasons (Technological, political, economic and environmental amongst them)

Ohhh, I thought you meant that you would want to see the experiment proved wrong.

Ah yes I could have been more clear, all the better to avoid appearing as the quantum entanglement grinch.

 

[Kharakov]

so, what does this mean?
are you saying the state of the particle isn't cloned, just a prior state is passed along?

Not really. The system of entangled particles has a specific known quantum state. So if you measure a property of one of the particles as 1, and you know the property of the whole system of 2 particles is 0, then you know the property of the other particle is -1.

It's just the QM interpretation that the particles do not have definite properties UNTIL the properties are measured that makes it seem like information is traveling faster than light.

 

[Bomb#20]

And doesn't this experiment represent a major step towards overturning it? Now, I admit I am not a physicist, but it seems they've managed to teleport a qubit and read it with a 100% accuracy, which overturns the No-teleportation theorem, does it not? If the no-teleportation theorem has been overturned, doesn't that cast serious doubt on the no-cloning theorem? And if the no-cloning theorem were to be overturned, that would overturn the no-communication theorem.

Just because one theorem is overturned, doesn't mean others will be.

Some of these theorems seem to *rely* on the other theorems being correct though; in which case it kind of does.

Yeah. I don't think the no cloning theorem has been overturned.

I'm not even sure the no-teleportation theorem has been overturned- they didn't construct the quantum state, they detected one state, and that showed them what the other state was.

Assuming this result is in line with earlier teleportation experiments, as the abstract implies, they did indeed construct the quantum state. And dystopian is correct that overturning the no-teleportation theorem overturns the no-cloning theorem; but you're correct that the no-teleportation theorem has not been overturned.

"The somewhat misleading name of this theorem does not imply that quantum teleportation is impossible; rather that teleportation is impossible by first converting quantum state into classical bits, and then moving the bits, and constructing a specific quantum state elsewhere." (Source -- see above.)

Elsewhere, I've proven the No-Wombat Theorem. The somewhat misleading name does not imply that wombats are impossible.

 

[Angra Mainyu]

In case anyone is interested, here is a link to the paper.

 

[Kharakov]

Elsewhere, I've proven the No-Wombat Theorem. The somewhat misleading name does not imply that wombats are impossible.

Ha.  Wombats are hilarious. I don't know what the no-wombat theorem is though, and I hope there is a real, as opposed to Copenhagen interpretation, joke involved.

Is it virgin birth- no womb bat involved?
Is it something done by cunning linguists?
If there is never a metaphorical bat in the womb, do bat's fly out of the womb metaphorically?

 

[Bomb#20]

Ha.  Wombats are hilarious. I don't know what the no-wombat theorem is though, and I hope there is a real, as opposed to Copenhagen interpretation, joke involved.

But do you really want to open that box?

 

[Kharakov]

Ha.  Wombats are hilarious. I don't know what the no-wombat theorem is though, and I hope there is a real, as opposed to Copenhagen interpretation, joke involved.

But do you really want to open that box?

I am not the all gifted one. Now I really want to know. Please tell me about the no wombat theorem.

 

[Juma]

Ha.  Wombats are hilarious. I don't know what the no-wombat theorem is though, and I hope there is a real, as opposed to Copenhagen interpretation, joke involved.

But do you really want to open that box?

I am not the all gifted one. Now I really want to know. Please tell me about the no wombat theorem.

No, wombat, no cry....

 

[Juma]

Please tell me about the no wombat theorem.

No, wombat, no cry,
No, wombat, no cry,
No, wombat, no cry,
No, wombat, no cry.

Said, said, said, I remember when we used to sit
On a shaded hill in Tasmania,
Oba - obaserving the dingos
As they would mingle with the good animals we meet.
Good friends we have, oh, good friends we've lost
Along the way.
In this great future, you can't forget your past,
So dry your tears, I seh.

No, wombat, no cry,
No, wombat, no cry.
'Ere, little darlin', don't shed no tears,
No, wombat, no cry.

Said, said, said, I remember when-a we used to sit
On a shaded hill in Tasmania
And then a human would make the fire lights,
As it was logwood burnin' through the nights.
Then they would cook cornmeal porridge,
Of which I'll stole for you,
My feet is my only carriage,
So I've got to push on through.
But while I'm gone, I mean,

Everything's gonna be all right!
Everything's gonna be all right!
Everything's gonna be all right!
Everything's gonna be all right!
I said, everything's gonna be all right-a!
Everything's gonna be all right!
Everything's gonna be all right, now!
Everything's gonna be all right!

So, wombat, no cry,
No, no, wombat, wombat, no cry.
wombat, little mammal, don't shed no tears,
No, wombat, no cry.

Said, said, said, I remember when-a we used to sit
On a shaded hill in Tasmania
And then a human would make the fire lights,
As it was logwood burnin' through the nights.
Then they would cook cornmeal porridge,
Of which I'll stole for you,
My feet is my only carriage,
So I've got to push on through.
But while I'm gone, I mean,

No, wombat, no cry,
No, wombat, no cry.
Wombat, little mammal', say don't shed no tears,
No, wombat, no cry.
Eh! (Little darlin', don't shed no tears!
No, wombat, no cry.
Little sister, don't shed no tears!
No, wombat, no cry.)