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experimental physics

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An illustration of far-apart particles connected by an aura.
explainers

How Bell’s Theorem Proved ‘Spooky Action at a Distance’ Is Real

By Ben Brubaker
July 20, 2021
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The root of today’s quantum revolution was John Stewart Bell’s 1964 theorem showing that quantum mechanics really permits instantaneous connections between far-apart locations.

A sphere swirling with many small orbs around it.
particle physics

‘Last Hope’ Experiment Finds Evidence for Unknown Particles

By Natalie Wolchover
April 7, 2021
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Today’s long-anticipated announcement by Fermilab’s Muon g-2 team appears to solidify a tantalizing conflict between nature and theory. But a separate calculation, published at the same time, has clouded the picture.

Orange hills (polaritons) against a black background. Below each hill, an arrow points to an angular position on a circle.
explainers

The Near-Magical Mystery of Quasiparticles

By Thomas Lewton
March 24, 2021
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The zoo of spontaneously emerging particlelike entities known as quasiparticles has grown quickly and become more and more exotic. Here are a few of the most curious and potentially useful examples.

Graphic of swirling vortex-like patterns called skyrmions.
condensed matter physics

A New Twist Reveals Superconductivity’s Secrets

By Charlie Wood
March 16, 2021
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An unexpected superconductor was beginning to look like a fluke, but a new theory and a second discovery have revealed that emergent quasiparticles may be behind the effect.

A video in which a proton seems to be composed of three particles, but on zooming in, it turns out to be a swirling miasma.
quantum physics

Decades-Long Quest Reveals Details of the Proton’s Inner Antimatter

By Natalie Wolchover
February 24, 2021
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Twenty years ago, physicists set out to investigate a mysterious asymmetry in the proton’s interior. Their results, published today, show how antimatter helps stabilize every atom’s core.

Concentric rings of light seen through crosshairs of a Fabry-Pérot interferometer.
Abstractions blog

Physicists Nail Down the ‘Magic Number’ That Shapes the Universe

By Natalie Wolchover
December 2, 2020
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A team in Paris has made the most precise measurement yet of the fine-structure constant, killing hopes for a new force of nature.

Particle going through a barrier
quantum physics

Quantum Tunnels Show How Particles Can Break the Speed of Light

By Natalie Wolchover
October 20, 2020
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Recent experiments show that particles should be able to go faster than light when they quantum mechanically “tunnel” through walls.

fluid vortices
fluid dynamics

An Unexpected Twist Lights Up the Secrets of Turbulence

By David H. Freedman
September 3, 2020
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Having solved a central mystery about the “twirliness” of tornadoes and other types of vortices, William Irvine has set his sights on turbulence, the white whale of classical physics.

materials science

The Shape-Shifting Squeeze Coolers

By Marcus Woo
August 24, 2020
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Push or crush a new class of materials, and they’ll undergo record-breaking temperature changes.


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