Fighting Counterfeiters With Quantum Money

the_newsbeagle writes "This article discusses a proposal to create cash that can't be counterfeited by embedding quantum particles in banknotes. A counterfeiter trying to copy a real bill would have to precisely measure all the attributes of the embedded quantum particles — which is impossible under the tricky laws of quantum mechanics (PDF). MIT computer scientist Scott Aaronson, who famously offered a prize for anyone who could prove quantum computers are impossible, said, 'This is science fiction, but it’s science fiction that doesn’t violate any of the known laws of physics.'"

Comments

Re:Make American dollars more sophisticated

[Khyber]

"This is a list of all the anti-counterfeiting measures in US currency"

AND YOU FORGOT THE FUCKING IRON EYES. The eyes of the Presidents on the Obverse side of the bill is ferro-magnetic.

I'm quite sure I could slip counterfeits past you all day long. Good job relying upon that Wikipedia education.