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Focus

The Gambler, Maxwell’s New Demon

In a new version of Maxwell’s demon, the tiny being plays the role of a gambler who knows when to quit. Read More »

Feature

A 4D Fusion Puzzle

Duco Jansen explains how he, along with engineers at the ITER fusion experiment, will position 1000-ton parts shipped in from the four corners of the globe. Read More »

synopsis

Holding on to a Cold Plasma

Researchers have demonstrated that an ultracold neutral plasma can be magnetically confined, paving the way toward experiments that simulate its hot astrophysical counterparts. Read More »

Viewpoint

The Tiniest Superfluid Circuit in Nature

A new analysis of heavy-ion collision experiments uncovers evidence that two colliding nuclei behave like a Josephson junction—a device in which Cooper pairs tunnel through a barrier between two superfluids. Read More »

synopsis

How a Microorganism Corkscrews While It Breaststrokes

High-speed imaging and simulations show that the single-celled organism called Chlamydomonas reinhardtii beats its flagella on separate planes, explaining how it generates its helical movement. Read More »

synopsis

The Entangled Dance of Atom Beams

Entangled pairs of ultracold atoms interfere in a double waveguide. Read More »

Viewpoint

Ion Microscopy Goes Quantum

Researchers have developed an ion-optics-based quantum microscope that has sufficient resolution to image individual atoms. Read More »

Focus

An Atom Pushed to Its Speed Limit

Researchers have transported an atom between two locations in the shortest possible time, an achievement that has implications for quantum technologies. Read More »

synopsis

Distorting Nuclear Mirror

Two “mirror” nuclei, in which the numbers of neutrons and protons are interchanged, have markedly different shapes—a finding that defies current nuclear theories. Read More »

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