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Quantum physics
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How Randomness Can Arise From Determinism
Playing with a simple bean machine illustrates how deterministic laws can produce probabilistic, random-seeming behavior.
Where Quantum Probability Comes From
There are many different ways to think about probability. Quantum mechanics embodies them all.
The Universal Law That Aims Time’s Arrow
A new look at a ubiquitous phenomenon has uncovered unexpected fractal behavior that could give us clues about the early universe and the arrow of time.
Physicists Peer Inside a Fireball of Quantum Matter
Experimenters in Germany have glimpsed the kind of strange, non-atomic matter thought to fill the cores of merging neutron stars.
Quantum Darwinism, an Idea to Explain Objective Reality, Passes First Tests
Three experiments have vetted quantum Darwinism, a theory that explains how quantum possibilities can give rise to objective, classical reality.
The Quantum Theory That Peels Away the Mystery of Measurement
A recent test has confirmed the predictions of quantum trajectory theory.
Quantum Leaps, Long Assumed to Be Instantaneous, Take Time
An experiment caught a quantum system in the middle of a jump — something the originators of quantum mechanics assumed was impossible.
How Feynman Diagrams Revolutionized Physics
In the late 1940s, Richard Feynman invented a visual tool for simplifying particle calculations that forever changed theoretical physics.
With a Simple Twist, a ‘Magic’ Material Is Now the Big Thing in Physics
The stunning emergence of a new type of superconductivity with the mere twist of a carbon sheet has left physicists giddy, and its discoverer nearly overwhelmed.