top | item 8611023

(no title)

yottah | 11 years ago

Entanglement links 2 things together 10,000+ times the speed. There will be quantum FTL internet soon whether you like it or not. There already exists early technology for this: http://www.technologyreview.com/view/524186/quantum-internet...

discuss

order

cbd1984|11 years ago

Absolutely nothing in either the article you linked or the actual published paper the article links to [0] indicates that the experts think this points the way to FTL signalling of any type.

The article might have glossed over that, but the researchers wouldn't have. Anyone who thought they had a way to send information FTL would be heralding it from the rooftops, because that, and not quantum teleportation or quantum solid-state whatever, would be the main story.

Why? Because FTL signalling inherently means causality is broken. Effects can precede causes. You can send information back in time. This is inherent in the geometry of the Universe, as predicted by Special Relativity, one of the best-tested and most-validated theories we have to date. Special Relativity is validated every time anyone uses GPS, for example, and the prediction that FTL implies travel back in time is inherent to what Special Relativity is.

So I'm not going to take you at your word. The supposed FTL neutrinos which turned out to be some loose cables show what happens when the scientific world even thinks that Special Relativity might need to be modified.

[0] http://arxiv.org/abs/1401.6958

yottah|11 years ago

[deleted]