Einstein was not a big fan of quantum theory. The idea of quantum theory and that a particle's position is not known until it is observed bothered Einstein. Einstein said regarding quantum theory: “God does not play dice”. A founding father of quantum theory, Niel Bohr, replied, “Stop telling God what to do.”
Einstein discovered quantum entanglement, calling it “spooky action at a distance”. Einstein discovered that quantum entanglement comes from the equations of quantum mechanics. Einstein found that two particles could become entangled so that, no matter the distance separating the two particles, if one particle is changed then the other entangled particle changes as well. When Einstein first discovered quantum entanglement, he thought it would disprove and discredit quantum theory. Einstein was later proven wrong.
Quantum entangled particles that can stay connected even when separated by large distances could be applied to encrypt communications and improve security over the internet. In the 1990s, scientists succeeded in using entanglement to securely transmit a message from one person to another by creating a shared quantum key that decoded the message only for the sender and receiver; however, it only worked when sending a message between two parties.
Together with researchers from Peking University, Associate Professor Margaret Reid from Swinburne's Centre for Quantum and Optical Science, published a paper this month showing that messages can be shared between more than two people.
This is a major scientific breakthrough and it may provide unprecedented speed and security for a future quantum internet. This could open up a whole new industry involved in building out a quantum internet. One day, we might be able to invest in a quantum communications company and get in on the ground floor like our parents were able to invest in telecommunications and long distance phone companies decades ago. This could revolutionize communications over vast distances, even in space. Could this be why we have not detected any radio waves coming from outer-space? Perhaps it's not that no intelligent life is out there but instead an issue of communications protocol where communications over light-years distance in outer-space is simply unpractical for anything but quantum entangled based communications.
Paralaks posted the video below that explains more about the science behind quantum entanglement:
UNSWTV posted the video below that shows how scientists are moving closer to creating a quantum internet:
Sources and more information:
Einstein's ‘Spooky' Theory Could Bring Snowden's Encrypted Internet Dream to Life
Albert Einstein's “spooky” quantum mechanics theory about entangled particles that can stay connected even when separated by large distances could be applied to encrypt communications and improve security over the internet… Until now the real application of this has been for messages being shared between two people securely without interception, regardless of the spatial separation between them…