Issues

The new measurement subjects quantum electrodynamics to its most stringent test yet. And the theory passes once again, thwarting hopes of a revealing discrepancy.

When pairs of atom clouds merge and interfere, the resulting fringes embody and reveal the atoms’ collective coherence.

High-energy physics at a Beijing collider is just one of the myriad scientific projects benefiting from China’s thriving economy.

The axion is a hypothetical particle with a mass possibly a trillion times lighter than an electron and exceedingly small couplings to ordinary matter. Yet experiments may soon detect its presence, either as dark matter or as a component of solar flux.

A colloquium delivered to the University of Toronto physics department on 5 April 1979 by the master of molecular beams offers a fresh look at an earlier era.

To address the misconceptions that students typically hold concerning quantum mechanics, instructors should couple computer-based visualizations with research-based pedagogical strategies.

Greenhouse gases make Earth’s surface hotter than it would be if the planet were simply a blackbody radiator. That additional warming is an important driver of hurricanes.