Scientists have figured out what we need to achieve secure quantum teleportation
Before you get too excited, no, this doesn't mean we can now teleport humans like they do on Star Trek (sorry). Instead, this research will allow people to use quantum entanglement to send information across large distances without anyone else being able to eavesdrop. Which is almost as cool, because this is how we'll form the un-hackable communication networks of the future.
Paper:
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.180502
PR:
http://www.swinburne.edu.au/news/latest-news/2015/12/einsteins-spooky-steering-needed-for-secure-quantum-teleportation.php
Article:
http://www.sciencealert.com/scientists-have-figured-out-what-we-need-to-achieve-secure-quantum-teleportation
#physics #quantumteleportation #research
Alice and Bob must be getting on a bit now, sending encrypted messages since it was originally conceived. Eve (who probably works for the NSA or GCHQ) is going to find it even harder to evesdrop with this, though at a practical/economical level it is probably years away from widespread use
ReplyDeleteIt's going to be just as important to close the time lag on interplanetary communications as to actually get people out there.
ReplyDeleteAntenna Wilde as I understand entanglement, you need to have two localized particles in an uncolapsed superposition state first and then separate them to achieve entanglement at a distance. So to talk to anyone at a distance you'd have to transmit them an entangled particle at light speed (or slower) first.
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