A new ‘lens’ for looking at quantum behavior At the heart of quantum theory is the idea that objects in the quantum worldwill sometimes behave like particles, and other times behave like waves. This ability to combine exclusive properties is called a quantum superpositionand is a fundamental principle of quantum mechanics.    Duality has been the foundation of many ongoing debates in the physics community, the most famous of which was between Albert Einstein and Niels Bohr. Ultimately the issue physicists face is that you can’t observe both wave-like and particle-like properties with a single apparatus. Terno and Ionicioiu have tried to tackle this issue by asking - what if when performing experiments, parts of the apparatus are absent and present at the same time. What the researchers propose is that you can select the property being tested (wave or particle) even after the test is performed. Known as a delayed-choice experiment, the photon in this experiment shows a “morphing” between “particle” and “wave,” supporting the conclusion that these properties are not inherent, but merely a reflection on how we “look” at it. “Unlike the traditional approach, in this quantum-controlled experiment a single set-up is used to measure complementary behaviors, and they are revealed by matching the data about a photon with the data about the apparatus.  What we find is that behavior is in the eye of the observer, ” Terno summarizes. Quantum Physics just blows the mind, doesn’t it? 
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A new ‘lens’ for looking at quantum behavior

At the heart of  is the idea that objects in the will sometimes behave like particles, and other times behave like waves. This ability to combine exclusive properties is called a and is a fundamental principle of quantum mechanics.   

Duality has been the foundation of many ongoing debates in the physics community, the most famous of which was between Albert Einstein and Niels Bohr. Ultimately the issue physicists face is that you can’t observe both wave-like and particle-like properties with a single apparatus.

Terno and Ionicioiu have tried to tackle this issue by asking - what if when performing experiments, parts of the apparatus are absent and present at the same time. What the researchers propose is that you can select the property being tested (wave or particle) even after the test is performed.

Known as a delayed-choice experiment, the photon in this experiment shows a “morphing” between “particle” and “wave,” supporting the conclusion that these properties are not inherent, but merely a reflection on how we “look” at it.

“Unlike the traditional approach, in this quantum-controlled experiment a single set-up is used to measure complementary behaviors, and they are revealed by matching the data about a photon with the data about the apparatus.  What we find is that behavior is in the eye of the observer, ” Terno summarizes.

Quantum Physics just blows the mind, doesn’t it? 

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