Recent Articles

Quantum Information

Synopsis: Quantum Annealers Limited by Temperature

Calculations show that quantum annealing—the quantum computing method used in a commercially available device—is hampered by thermal effects. Read More »

Cosmology

Synopsis: Self-Interacting Dark Matter Scores Again

Dark matter that interacts with itself provides a better description of the speeds of stars in galaxies than dark matter that doesn’t self-interact. Read More »

Statistical Physics

Viewpoint: Squeezed Environment Boosts Engine Performance

A tiny engine can surpass the Carnot limit of efficiency when researchers engineer the thermal properties of the environment. Read More »

Astrophysics

Synopsis: Searching for Neutron Star Gravitational Waves

The first run of LIGO and Virgo’s gravitational-wave search shows no evidence of spinning asymmetric neutron stars, but recent upgrades could make the detection possible. Read More »

Particles and Fields

Viewpoint: A Doubly Charming Particle

High-precision experiments at CERN find a new baryon containing two charm quarks. Read More »

Fluid Dynamics

Focus: Superpropulsion of Liquid Drops

An oscillating surface can propel a drop of water or a springy ball upward at a speed higher than that of the moving surface. Read More »

Soft Matter

Synopsis: Even Flocks are Topological

A flocking model that describes birds and cells exhibits topological features when the moving entities are confined to a curved surface. Read More »

Atomic and Molecular Physics

Synopsis: Radioactive Qubits

The trapping and cooling of the radioactive isotope barium-133 offers up an attractive system for encoding quantum information. Read More »

Statistical Physics

Synopsis: Subway Stats

A comparison of the arrival-time statistics of New York City’s subway trains indicates that some train lines may be more efficiently run than others. Read More »

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