Quantum Physics

A new calculation helps narrow down the mass of the W boson, one of the heaviest fundamental particles in the universe

Ghost Murmur was described as a futuristic CIA tool that could detect a heartbeat from vast distances. Physicists say the public story clashes with the basic limits of magnetic sensing

Charles H. Bennett and Gilles Brassard, winners of the latest Turing Award, spent their lives touting the advantages of the quantum world

Superprecise timekeepers based on atomic nuclei could be tested as soon as this year

Long ago, the cosmos might have been a black hole factory—and these primordial objects are even weirder than you think

The Large Hadron Collider just produced a never-before-seen particle made of charm and down quarks

One physicist is on a mission to get scientists to look into Louis de Broglie’s pilot wave theory

Physicists have observed the bizarre Terrell-Penrose effect in real life

Scientists have found “strange quarks” that originated as virtual particles that sprang from nothing

The puzzle of time remains one of the most persistent obstacles to a unified theory of physics

A century ago, Erwin Schrödinger came up with an equation that says how the quantum world behaves. Now scientists are asking what happens when the observer is part of that world

A record-breaking experiment shows that a cluster of thousands of atoms can act like a wave as well as a particle