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量子物理：輪廻が「シュレーディンガーの猫」を救う
>> http://www.nature.com/news/2008/080702/full/454008a.html
Physicists reverse quantum?classical transition.
Zeeya Merali
It's one of the most perplexing questions in physics: how does the seemingly exotic behaviour of tiny particles in the quantum realm collapse to create the classical reality observable in matter that is at least a molecule big? Now, an experiment further muddies the distinction between the two realms by demonstrating that it is possible to halt the transition from the quantum to the classical in its tracks ? and reverse it. The achievement could provide quantum computing with a crucial capability.物理学において最も紛糾を招く問題の一つ。外来性の振る舞いを見せる微粒子の量子領域における崩壊が、どのようにして分子のような大きい物体にまで観測可能な古典的実在性を引き起こすのか。今にちの実験は、古典系に転移する量子過程を静止し、逆転すら可能であることを実証、この二つの実在性の境界を曖昧にした。この偉業は、量子コンピューティングにおいて極めて重大な意義を持つ。
Published online 2 July 2008
Nature 454, 8-9 (2008)
doi:10.1038/454008a