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Condensed matter physics

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Quantum Complexity Tamed by Machine Learning

February 7, 2022

If only scientists understood exactly how electrons act in molecules, they’d be able to predict the behavior of everything from experimental drugs to high-temperature superconductors. Following decades of physics-based insights, artificial intelligence systems are taking the next leap.

Quantum Simulators Create a Totally New Phase of Matter

December 2, 2021

One of the first goals of quantum computing has been to recreate bizarre quantum systems that can’t be studied in an ordinary computer. A dark-horse quantum simulator has now done just that.

Major Quantum Computing Strategy Suffers Serious Setbacks

September 29, 2021

So-called topological quantum computing would avoid many of the problems that stand in the way of full-scale quantum computers. But high-profile missteps have led some experts to question whether the field is fooling itself.

Physicists Create a Bizarre ‘Wigner Crystal’ Made Purely of Electrons

August 12, 2021

The unambiguous discovery of a Wigner crystal relied on a novel technique for probing the insides of complex materials.

Eternal Change for No Energy: A Time Crystal Finally Made Real

July 30, 2021

Like a perpetual motion machine, a time crystal forever cycles between states without consuming energy. Physicists claim to have built this new phase of matter inside a quantum computer.

The ‘Weirdest’ Matter, Made of Partial Particles, Defies Description

July 26, 2021

Theorists are in a frenzy over “fractons,” bizarre, but potentially useful, hypothetical particles that can only move in combination with one another.

Graphene Superconductors May Be Less Exotic Than Physicists Hoped

June 14, 2021

Superconductivity has been discovered in graphene devices without any twists, suggesting the form of superconductivity in the material might be mundane after all.

The Near-Magical Mystery of Quasiparticles

March 24, 2021

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.

A New Twist Reveals Superconductivity’s Secrets

March 16, 2021

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.

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