Quantum Physics

Theories that try to explain these big metaphysical mysteries fall short, making agnosticism the only sensible stance

New research shows that there are problems even quantum computers might never be able to solve

Originally built to speed up calculations, a machine-learning system is now making shocking progress at the frontiers of experimental quantum physics

If such an object a mere 1,000 times bigger than an atom passed through your body, the result would not be pretty

Two teams have demonstrated new degrees of quantum measurements in micron-sized metal drums

The discrepancy between the theoretical prediction and the experimentally determined value of the muon’s magnetic moment has become slightly stronger with a new result from Fermilab. But what does it mean?

Initial data from the Muon g-2 experiment have excited particle physicists searching for undiscovered subatomic particles and forces

Muons and electrons might not experience the same fundamental interactions, contrary to Standard Model predictions

Physicists have new ideas about why the energy of empty space is so much weaker than it is predicted to be

Just because a mathematical formula works does not mean it reflects reality

One of the most basic processes in all of nature—a subatomic particle’s transition between discrete energy states—is surprisingly complex and sometimes predictable, recent work shows

Physicists describe a way to merge quantum theory with Einstein’s special theory of relativity—and even a method to test it experimentally