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But still, scientists have wondered, does light switch from being a particle to being a wave depending on the circumstance? Or is light always both a particle and a wave simultaneously?
Now, for the first time, researchers have devised a new type of measurement apparatus that can detect both particle and wave-like behavior at the same time. The device relies on a strange quantum effect called quantum nonlocality, a counter-intuitive notion that boils down to the idea that the same particle can exist in two locations at once.
"The measurement apparatus detected strong nonlocality, which certified that the photon behaved simultaneously as a wave and a particle in our experiment," physicist Alberto Peruzzo of England's University of Bristol said in a statement. "This represents a strong refutation of models in which the photon is either a wave or a particle."
The researchers found that this allowed them to delay the photon's wave or particle quality until after it has passed through all the experimental equipment, including the second beam splitter tasked with determining that very thing. "We can delay by a few nanoseconds, but in principle it's equivalent to delaying as much as you want," explains Peruzzo.
Meanwhile, Sébastien Tanzilli at the University of Nice Sophia-Antipolis in France and colleagues have shown exactly the same thing using a slightly different set-up.
The upshot of both experiments can be cast in the language of Schrödinger's cat. "Long after the cat has supposedly been killed or not, one can choose to determine if it is dead or alive or determine if it is dead and alive," says Seth Lloyd at the Massachusetts Institute of Technology, who was not involved in either experiment.
"There aren't so many experimentally accessible demonstrations of quantum weirdness available, and this is one of the coolest," he adds.
Peruzzo also reckons the effect could have practical applications. Because the bits in a quantum computer are entangled, they could be affected by the same bizarre effects. "Every technology that will use quantum information will have to take this into account," he says.
Originally posted by neoholographic
This is a HUGE BLOW to materialism!! This study shows that the Observer's choice creates what we call "reality." Here's a few key lines from the study.
Originally posted by Sparky63
reply to post by neoholographic
The notion that the answer to our complex and finely tuned universe is to create an infinitely more complex "multiverse" is absurd in my humble opinion. It seems that physicists will grasp at any conclusion that eliminates the need for an intelligent designer even if it makes the model infinitely more complex and of course, ultimately unprovable.
Originally posted by alfa1
Originally posted by neoholographic
This is a HUGE BLOW to materialism!! This study shows that the Observer's choice creates what we call "reality." Here's a few key lines from the study.
1. You are confused. It doesnt mean what you think it does.
"The measurement apparatus detected strong nonlocality, which certified that the photon behaved simultaneously as a wave and a particle in our experiment," physicist Alberto Peruzzo of England's University of Bristol said in a statement. "This represents a strong refutation of models in which the photon is either a wave or a particle."
the multiverse supports consciousness and the Observer.
Originally posted by LiberalSceptic
Does this mean that we (one conscience in specific) exist in all the different parts of the multiverse, at the same time.
So to say, "floating" around depending on our choices?edit on 5-11-2012 by LiberalSceptic because: (no reason given)
Originally posted by neoholographic
I repeat:
"The measurement apparatus detected strong nonlocality, which certified that the photon behaved simultaneously as a wave and a particle in our experiment," physicist Alberto Peruzzo of England's University of Bristol said in a statement. "This represents a strong refutation of models in which the photon is either a wave or a particle."