The subtlest experiment in quantum mechanics is also one of the simplest: send a stream of particles through two openings in a barrier, and you'll produce an interference pattern because the particles ...

Most of us have heard about the double-slit experiment being performed using photons or electrons, but what about atoms and molecules? Prepare to have your mind boggled! Most of us have heard about ...

This week, an exciting new experiment has been published in Science. Funnily enough, it repeats an experiment that is over 200 years old, and I am not certain that it teaches us anything new about the ...

3D plot of a single photon showing wave-like behaviour An international team of researchers has, for the first time, mapped complete trajectories of single photons in Young’s famous double-slit ...

Light sometimes prefers to take the scenic route. Now, a new twist on a classic experiment could trace photons’ wandering ways. In the Sept. 19 Physical Review Letters, researchers propose a version ...

Scully and Drühl's thought experiment is not as easy to realize as it is to draw. Even separating the γ and Φ photons is difficult to accomplish, and keeping exactly two atoms stationary in a slit for ...

Quantum mechanics is famous for saying that a tree falling in a forest when there's no one there doesn't make a sound. Quantum mechanics also says that if anyone is listening, it interferes with and ...

Say you're the editor of a science journal deciding whether studies arriving over the transom deserve to be published -- or forwarded to "The X-Files." And say that this morning's FedEx delivers a ...

A double-slit experiment performed with two rubidium atoms precisely held in an optical lattice inside an optical cavity provides a new platform for exploring quantum effects. Will the behaviour of ...

If you ever had to make a difficult choice between two alternatives and unfortunately chose the one that turned out to be less favorable in retrospect, you probably wished you could simply turn back ...

The quantum concepts of entanglement and interaction-free measurements are applied to spectroscopy to successfully sense carbon dioxide in air. Quantum metrology is blooming in a wide range of ...

New research demonstrates that particles move similar to billiard balls rolling along a table. Instead of the “realistic” path that you’re probably imagining though, the particles actually move in a ...