Wednesday, March 17, 2010

First quantum effects seen in visible object

Does Schrödinger's cat really exist? You bet. The first ever quantum superposition in an object visible to the naked eye has been observed.

Aaron O'Connell and colleagues at the University of California, Santa Barbara, did not actually produce a cat that was dead and alive at the same time, as Erwin Schr̦dinger proposed in a notorious thought experiment 75 years ago. But they did show that a tiny resonating strip of metal Рonly 60 micrometres long, but big enough to be seen without a microscope Рcan both oscillate and not oscillate at the same time. Alas, you couldn't actually see the effect happening, because that very act of observation would take it out of superposition.

Source

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