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The renowned British physicist, who died at 76, left behind a riddle that could eventually lead his successors to the theory of quantum gravity.

A recently proposed experiment would confirm that gravity is a quantum force.

Two teams of physicists have created the “Higgs mode” – a link between particle physics and the physics of matter. The work could help researchers understand the strange behavior of deeply quantum systems.

A complete classification could lead to a wealth of new materials and technologies. But some exotic phases continue to resist understanding.

Physicists are trying to rewrite the axioms of quantum theory from scratch in an effort to understand what it all means. The problem? They’ve been almost too successful.

Time isn’t just another dimension, argues Tim Maudlin. To make his case, he’s had to reinvent geometry.

Physicists are attempting to map the distribution of the prime numbers to the energy levels of a particular quantum system.

In order to fully understand the quantum world, we may have to develop a new realm of mathematics.

A simple analogue could offer insights into one of the most astonishing results of quantum mechanics.