3 ms·
Teleportation across Calgary marks 'major step' toward 'quantum internet'
- jdmichal 10y agoFor those thinking that this is a step towards faster-than-light (FTL) communication: As far as I know it's fairly certain that quantum entanglement will not allow for FTL communication. Basic principle is that while measurements between both sides will be correlated, it's not possible to tell how they are correlated until both sides compare measurements. https://en.wikipedia.org/wiki/Superluminal_communication#Quantum_nonlocality https://en.wikipedia.org/wiki/Superluminal_communication#Qua... http://physics.stackexchange.com/a/203893 http://physics.stackexchange.com/a/203893 Given that, it seems like the touted benefit of using quantum entanglement here is in securing communications, since your measurements will no longer correlate if a third party is also measuring? At least, that's what I gathered.
- amingilani 10y agoI don't follow. How is it teleportation, if they used a fiber optic cable to transmit the photon?