Light is everywhere,it illuminates our world, enables vision, and travels across galaxies. But what is light, really? Is it a ...

MIT researchers used ultracold atoms to isolate the quantum trade-off between wave interference and particle path detection.

Physicists at MIT recreated the double-slit experiment using individual photons and atoms held in laser light, uncovering the ...

The experiment showed that Bohr was definitely correct when he argued for complementarity, and that Einstein had got it wrong. The more atom-rustling that was measured, the weaker the diffraction ...

In a striking display of quantum physics, a team of researchers has recreated one of science’s most legendary ...

A groundbreaking experiment demonstrates yet again that light exists both as a wave and a particle in the quantum world—but ...

Like the proverbial tree falling in the forest, scientists wonder: does reality exist on its own . . . or just when you observe the world?

This quantum balancing act—long debated by Einstein and Bohr—was tested without traditional “spring” components, instead ...

In classical optics, for instance, a brighter light has more energy, and a greater amplitude of its electromagnetic wave.

WBOC's Charles Paparella has a deep question that is a subject of eternal fascination for photographers. Is light a particle, or is it a wave?

Wave-particle duality was born. As recounted in Quantum Revelation, when asked to sum up quantum mechanics in just 5 words, physicist Sean Carroll’s response was, “Don’t look: waves.