Time feels steady and familiar in daily life, but at the quantum level it becomes slippery. That puzzle now has a fresh twist thanks to new research led by physicists at École Polytechnique Fédérale ...

Research reveals how close human vision comes to sensing the smallest possible unit of light. Here’s why that matters for ...

Physicists are closing in on a strange, hidden influence that does not fit neatly into the four familiar forces of nature, ...

Measuring conditions in volatile clouds of superheated gases known as plasmas is central to pursuing greater scientific ...

Researchers have successfully demonstrated device-independent quantum key distribution over 62 miles of optical fiber.

A neutrino slammed into Earth in 2023 with so much energy that it looked almost unreal. The particle carried about 220 ...

While it has become a word, laser used to be an acronym: “light amplification by stimulated emission of radiation”. But there is an even older technology called a maser, which is the ...

A century-old thought experiment on wave–particle duality is brought into the laboratory using a single trapped atom ...

Athought experiment at the heart of an argument between famed physicists Albert Einstein and Niels Bohr in 1927 has finally been made real. Its findin.

A scientific dispute nearly a century old now appears to be nearing its conclusion, as the results of two new quantum experiments may clarify which of the opposing theories of Einstein and Bohr was ...

The experiments, conducted independently by teams at the Massachusetts Institute of Technology (MIT) and the University of Science and Technology of China (USTC), used different setups to test whether ...

In 1927, Albert Einstein and Neils Bohr debated the nature of what’s known as complementarity—the idea that a photon’s dual wave-like and particle natures can’t be measured at the same time. Now, two ...