All Questions
7 questions
11
votes
4
answers
21k
views
What is coherence in quantum mechanics?
What are coherence and quantum entanglement? Does it mean that two particles are the same?
I read this in a book called Physics of the Impossible by Michio Kaku. He says that two particles behave in ...
4
votes
1
answer
4k
views
Quantum teleportation and no-communication theorem
According to the Wikipedia article for the No-communication theorem:
In very rough terms, the theorem describes a situation that is analogous to two people, each with a radio receiver, listening to ...
11
votes
2
answers
1k
views
Can't quantum teleportation be superluminal some percentage of times?
I apologize if this is a really silly question.
In the (textbook) quantum teleportation algorithm, in the step right after Alice has measured her system but before she has sent her classical ...
6
votes
1
answer
5k
views
What are the benefits of quantum information "teleportation"?
I read occasionally popular science articles and from time to time encounter issues about quantum information teleportation. (this one for example http://www.physorg.com/news193551675.html)
So far I ...
0
votes
1
answer
471
views
Is quantum teleportation really teleportation? [closed]
I don't understand how quantum teleportation is considered teleportation if no information is transfered (in q-bits). Wouldn't it be less misleading calling it "quantum encrypting" or something ...
-2
votes
1
answer
146
views
Does the success of quantum teleportation means quantum cloning is possible too?
Well, I thought this might just be possible. Instead of having Bob and Alice having an entangled pair, they have multiple (> 2) amount of entangled quantum object (I'm not sure if this is possible too,...
-3
votes
2
answers
298
views
Communication via teleportation/entanglement (FTL communication)
I know this has been asked many times, but I have a hard time "crystallising" it in my mind.
First: let's say we teleport a DVD (with quantum teleportation). Isn't this FTL communication?
Second: ...