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quantum mechanics

2D knots illustration by James O'Brien
Quantized Columns

Inside the Knotty World of ‘Anyon’ Particles

A new class of quantum particle is about to emerge from the tangled considerations of quantum statistics.

Illustration: balloon modelling as a metaphor for entanglement
insights puzzle

How to Tame Quantum Weirdness

Can balloon animals help blunt uneasy feelings about “spooky action at a distance”?

Particle measurement GIF illustration
quantum mechanics

Experiment Reaffirms Quantum Weirdness

Physicists are closing the door on an intriguing loophole around the quantum phenomenon Einstein called “spooky action at a distance.”

Quantum Brain GIF
neuroscience

A New Spin on the Quantum Brain

A new theory explains how fragile quantum states may be able to exist for hours or even days in our warm, wet brain. Experiments should soon test the idea.

string theory

The Strange Second Life of String Theory

String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science.

cosmology

A Debate Over the Physics of Time

According to our best theories of physics, the universe is a fixed block where time only appears to pass.

Quantized Columns

How Feynman Diagrams Almost Saved Space

Richard Feynman’s famous diagrams weren’t just a way to do calculations. They represented a deep shift in thinking about how the universe is put together.

Q&A

An Explorer of Quantum Borderlands

Suchitra Sebastian’s searches for quantum anomalies have led to the potential discovery of a new building block of matter.

Olena Shmahalo/Quanta Magazine
quantum mechanics

New Support for Alternative Quantum View

An experiment claims to have invalidated a decades-old criticism against pilot-wave theory, an alternative formulation of quantum mechanics that eliminates the most baffling features of the subatomic universe.