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experimental physics

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A levitating puck of material.
superconductivity

Room-Temperature Superconductor Discovery Meets With Resistance

By Charlie Wood +1 authors
Zack Savitsky
March 8, 2023
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A paper in Nature reports the discovery of a superconductor that operates at room temperatures and near-room pressures. The claim has divided the research community.

A shining lightbulb with a cord that’s not plugged in.
quantum physics

Physicists Use Quantum Mechanics to Pull Energy out of Nothing

By Charlie Wood
February 22, 2023
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The quantum energy teleportation protocol was proposed in 2008 and largely ignored. Now two independent experiments have shown that it works.

Video/image of a metronome whose arm is simultaneously ticking rightward and leftward.
quantum physics

How Quantum Physicists ‘Flipped Time’ (and How They Didn’t)

By Charlie Wood
January 27, 2023
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Two teams have made photons act as if time were simultaneously flowing in two directions. The experiments demonstrate a way to potentially boost the performance of quantum devices.

A woman stands in a darkened laboratory next to a shallow tank of water that glows green.
Q&A

She Turns Fluids Into ‘Black Holes’ and ‘Inflating Universes’

By Thomas Lewton
December 12, 2022
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By using fluids to model inaccessible realms of the cosmos, Silke Weinfurtner is “looking for a deeper truth beyond one system.” But what can such experiments teach us?

quantum gravity

Physicists Create a Holographic Wormhole Using a Quantum Computer

By Natalie Wolchover
November 30, 2022
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The unprecedented experiment explores the possibility that space-time somehow emerges from quantum information.

A graph that’s broken and crumbling
quantum physics

Experiments Spell Doom for Decades-Old Explanation of Quantum Weirdness

By Philip Ball
October 20, 2022
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Physical-collapse theories have long offered a natural solution to the central mystery of the quantum world. But a series of increasingly precise experiments are making them untenable.

A video in which a metallic cube floats above a dark disk as liquid nitrogen evaporates around them
condensed matter physics

High-Temperature Superconductivity Understood at Last

By Charlie Wood
September 21, 2022
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A new atomic-scale experiment all but settles the origin of the strong form of superconductivity seen in cuprate crystals, confirming a 35-year-old theory.

Dendritic ice crystals grow from top to bottom across the frame of a video.
condensed matter physics

Controversy Continues Over Whether Hot Water Freezes Faster Than Cold

By Adam Mann
June 29, 2022
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Decades after a Tanzanian teenager initiated study of the “Mpemba effect,” the effort to confirm or refute it is leading physicists toward new theories about how substances relax to equilibrium.

An illustration of a spherical universe sitting inside a machine hooked up to wires.
neural networks

How to Make the Universe Think for Us

By Charlie Wood
May 31, 2022
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Physicists are building neural networks out of vibrations, voltages and lasers, arguing that the future of computing lies in exploiting the universe’s complex physical behaviors.


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