澳门新永利官方网址:Dodge ban on quantum clones to trap Schrödinger's cat

 作者:司徒镌敕     |      日期:2019-03-14 02:06:00
By Lisa Grossman FROM the photocopier to the fax to a computer’s “copy and paste” function, the ability to replicate information is something we take for granted. At the quantum scale, however, making exact copies should be impossible. Now there’s a way to dodge this cloning ban that could also help map the border between the “classical”, everyday world and the quantum realm – a goal illustrated by the Schrödinger’s cat paradox. The ban arises because, unlike large objects, two or more quantum particles can be entangled,