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atomic physics

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Inside the Proton, the ‘Most Complicated Thing' Imaginable

By Charlie Wood +1 authors
Merrill Sherman
October 19, 2022
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The positively charged particle at the heart of the atom is an object of unspeakable complexity, one that changes its appearance depending on how it is probed.

Four spheres representing a nucleus surrounded by two additional spheres.
atomic physics

An Antimatter Experiment Shows Surprises Near Absolute Zero

By Charlie Wood
March 16, 2022
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An experiment conducted on hybrid matter-antimatter atoms has defied researchers’ expectations.

quantum physics

An Ultra-Precise Clock Links the Quantum World With Gravity

By Katie McCormick
October 25, 2021
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Time was found to flow differently between the top and bottom of a single cloud of atoms. Physicists hope that such a system will one day help them combine quantum mechanics and Einstein’s theory of gravity.

quantum gravity

One Lab’s Quest to Build Space-Time Out of Quantum Particles

By Adam Becker
September 7, 2021
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For over two decades, physicists have pondered how the fabric of space-time may emerge from some kind of quantum entanglement. In Monika Schleier-Smith’s lab at Stanford University, the thought experiment is becoming real.

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.

Illustration for "Ultra-Accurate Clocks Lead Search for New Laws of Physics"
experimental physics

Ultra-Accurate Clocks Lead Search for New Laws of Physics

By Gabriel Popkin
April 16, 2018
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Atomic clocks are letting physicists tighten the lasso around elusive phenomena such as dark matter.

Inside this chamber, silica spheres probe for hidden extra dimensions, distortions of gravity, and dark-matter particles. | Peter DaSilva for Quanta Magazine
experimental physics

Tiny Tests Seek the Universe’s Big Mysteries

By Joshua Sokol
May 3, 2016
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The search for exotic new physical phenomena is being led by huge experiments like the Large Hadron Collider. But at the other end of the spectrum lie tabletop experiments — small-scale probes of hidden dimensions, dark matter and dark energy.

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