We've already broken the FTL barrier in . We've also witnessed energy escaping from black holes. Both of these are not possible according to (((special relativity))) and to the space/time charts in the video.
Space-time is not the root level of reality. It's an emergent structure from something much deeper that we do not yet understand.
You might wanna provide an archive link with .gov urls.
Isn't this just the equivalent of having a roll of a die whose result is secret, written on two pieces of paper, each mailed to different locations, then opened simultaneously and wow, they are the same result, must be instantaneous transmission?
Bell thought so. Came up with the Bell inequality to prove it. And his inequality proved the opposite under experiment.
I mean practically for secure information transfer. Bell did show that it can't actually be like that, but it can be treated like that for this use (correct me if I'm wrong). It's as if there's a secret coin flip whose results go to both parties. They can both find out the result simultaneously, but it doesn't allow instantaneous information transfer.
No, it's not because the outcomes are not random.
If you understand it you can give a short rebuttal as to why it's not like that (you ninja-edited your ad hom out after I wrote this). From Jewpedia:
Quantum teleportation is a technique for transferring quantum information from a sender at one location to a receiver some distance away. While teleportation is commonly portrayed in science fiction as a means to transfer physical objects from one location to the next, quantum teleportation only transfers quantum information. The sender does not have to know the particular quantum state being transferred. Moreover, the location of the recipient can be unknown, but to complete the quantum teleportation, classical information needs to be sent from sender to receiver. Because classical information needs to be sent, quantum teleportation cannot occur faster than the speed of light.
From what I've ever read about it, it's only useful for establishing a secret key between participants, e.g. a one-time pad, but it's not useful for FTL communication. Farther down:
The quantum channel is the communication mechanism that is used for all quantum information transmission and is the channel used for teleportation (relationship of quantum channel to traditional communication channel is akin to the qubit being the quantum analog of the classical bit). However, in addition to the quantum channel, a traditional channel must also be used to accompany a qubit to "preserve" the quantum information. When the change measurement between the original qubit and the entangled particle is made, the measurement result must be carried by a traditional channel so that the quantum information can be reconstructed and the receiver can get the original information. Because of this need for the traditional channel, the speed of teleportation can be no faster than the speed of light (hence the no-communication theorem is not violated). The main advantage with this is that Bell states can be shared using photons from lasers making teleportation achievable through open space having no need to send information through physical cables or optical fibers.
tl: dr: it's just a more secure way to transfer information than other means.
(post is archived)