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quantum physics

A stylized atom surrounded by concentric shells of increasingly complex organisms.
quantum physics

A New Theorem Maps Out the Limits of Quantum Physics

December 3, 2020

The result highlights a fundamental tension: Either the rules of quantum mechanics don’t always apply, or at least one basic assumption about reality must be wrong.

Illustration of a particle
Hidden Structure

What Is a Particle?

November 12, 2020

It has been thought of as many things: a pointlike object, an excitation of a field, a speck of pure math that has cut into reality. But never has physicists’ conception of a particle changed more than it is changing now.

Illustration of a black hole
Hidden Structure

The Most Famous Paradox in Physics Nears Its End

October 29, 2020

In a landmark series of calculations, physicists have proved that black holes can shed information.

Hidden Structure

A New Map of All the Particles and Forces

October 22, 2020

We’ve created a new way to explore the fundamental constituents of the universe.

Particle going through a barrier
quantum physics

Quantum Tunnels Show How Particles Can Break the Speed of Light

October 20, 2020

Recent experiments show that particles should be able to go faster than light when they quantum mechanically “tunnel” through walls.

An animation of a particle collision
Abstractions blog

The Mathematical Structure of Particle Collisions Comes Into View

August 20, 2020

Physicists have identified an algebraic structure underlying the messy mathematics of particle collisions. Some hope it will lead to a more elegant theory of the natural world.

A falling apple.
Abstractions blog

Why Gravity Is Not Like the Other Forces

June 15, 2020

We asked four physicists why gravity stands out among the forces of nature. We got four different answers.

A quantum knot.
Abstractions blog

‘Milestone’ Evidence for Anyons, a Third Kingdom of Particles

May 12, 2020

Anyons don’t fit into either of the two known particle kingdoms. To find them, physicists had to erase the third dimension.

Three particles moving closer together then farther apart. The region between them appears in green.
Abstractions blog

What Goes On in a Proton? Quark Math Still Conflicts With Experiments.

May 6, 2020

Two ways of approximating the ultra-complicated math that governs quark particles have recently come into conflict, leaving physicists unsure what their decades-old theory predicts.