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Quantum Experiment Confirms Reality Doesn’t Exist Until Measured
by NDTV
Australian scientists have successfully performed a famous experiment to prove a quantum physics prediction that reality does not exist until it is measured.
Physicists at The Australian National University (ANU) have conducted John Wheeler's delayed-choice thought experiment, which involves a moving object that is given the choice to act like a particle or a wave.
Wheeler's experiment then asks – at which point does the object decide?
Common sense says the object is either wave-like or particle-like, independent of how we measure it. But quantum physics predicts that whether you observe wave like behaviour (interference) or particle behaviour (no interference) depends only on how it is actually measured at the end of its journey.
This is what the ANU team found in its experiment.
“It proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at it,” said Associate Professor Andrew Truscott from the ANU Research School of Physics and Engineering.
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Source: http://www.riseearth.com/2015/06/quantum-experiment-confirms-reality.html
