Physicist Paul Davies looks back at the past century of quantum mechanics—the most disruptive theory in the history of modern science.

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The quantum Cheshire cat effect draws its name from the fictional Cheshire Cat in the Alice in Wonderland story. That cat was able to disappear, leaving only its grin behind. Similarly, in a 2013 ...

Cables underneath New York City are teeming with entangled quantum particles of light thanks to Qunnect, a company that has ...

The information contained in a book depends on its volume -- not merely on the area of the book's cover. In the quantum world, however, information is often closely linked to surface area. This ...

Quantum technology is here. It sounds dense, but experts say this field, which specializes in the tiny world of particles, could have big implications for computing, medicine and science. Math ...

In a study, physicists now observed a class of quantum particles called fractional excitons, which behave in unexpected ways and could significantly expand scientists' understanding of the quantum ...

Physicists have long treated space and time as the stage on which quantum particles perform, not as actors in the drama themselves. A new theoretical framework now flips that script, treating space ...

Quantum mechanics describes the unconventional properties of subatomic particles, like their ability to exist in a superposition of multiple states, as popularized by the Schrödinger's cat analogy, ...

A pair of identical particles swapping places sounds like a small move. In quantum physics, it is a defining one.