For nearly a century, some of the simplest questions in quantum theory have stubbornly resisted clean answers, turning basic ...

Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing that idea is challenging.

To reach this conclusion, the researchers examined the most basic form of entanglement between identical particles using the concept of nonlocality introduced by physicist John Bell. While ...

Time feels steady and familiar in daily life, but at the quantum level it becomes slippery. That puzzle now has a fresh twist ...

EPFL physicists have found a way to measure the time involved in quantum events and found it depends on the symmetry of the material. "The concept of time has troubled philosophers and physicists for ...

Physicists have found a way to measure how long ultra-fast quantum events actually take—without using a clock at all.

As quantum computers continue to advance, many of today's encryption systems face the risk of becoming obsolete. A powerful ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. This year is the International Year of Quantum Science and Technology, according to ...

For many of us, advanced physics can be tough to understand to begin with, which makes it all the more impressive whenever someone earns a Nobel Prize for advancing the field even further. The latest ...

The study shows that in quantum devices, reading a clock consumes far more energy than running it. This insight will help ...