Proof Mooted For Heisenberg's Uncertainty Principle

ananyo writes "Encapsulating the strangeness of quantum mechanics is a single mathematical expression. According to every undergraduate physics textbook, the uncertainty principle states that it is impossible to simultaneously know the exact position and momentum of a subatomic particle — the more precisely one knows the particle's position at a given moment, the less precisely one can know the value of its momentum. But the original version of the principle, put forward by physicist Werner Heisenberg in 1927, couches quantum indeterminism in a different way — as a fundamental limit to how well a detector can measure quantum properties. Heisenberg offered no direct proof for this version of his principle. Now researchers say they have such a proof. (Pre-print available at the arXiv.) If they're right, it would put the measurement aspect of the uncertainty principle on solid ground — something that researchers had started to question — but it would also suggest that quantum-encrypted messages can be transmitted securely."

Comments

Re: You keep using that word...

[Anonymous Coward]

It's a tactic they use to keep the uninformed thinking something is fact when in reality it is just someone's (unproven) idea. It's been working for a number of generations now. You'd be surprised how many people think macro evoloution has been scientifically proven, or global warming. They get one piece of the puzzle and think they've got the whole picture.