Recent Articles

Astrophysics

Viewpoint: Sky Survey Casts Light on the Dark Universe

The Dark Energy Survey has generated a map of invisible dark matter by observing tiny gravitationally induced distortions in the images of distant galaxies. Read More »

Quantum Physics

Synopsis: Entangled Mirrors Could “Reflect” Quantum Gravity

A proposed interferometry experiment could test quantum gravity theories by entangling two mirrors weighing as much as apples. Read More »

Atomic and Molecular Physics

Viewpoint: Towards an Atomtronic Diode

Rubidium atoms in an optical trap have been made to exhibit negative differential conductance, a phenomenon normally found in semiconductor diodes. Read More »

Fluid Dynamics

Focus: In a Race, Ice Balls Beat Steel Balls

An ice coating can halve the drag of an object moving in water by reducing the turbulent wake behind it. Read More »

Quantum Information

Synopsis: Pinpointing Qubits in a 3D Lattice

Researchers manipulate atomic qubits individually in a three-dimensional optical lattice. Read More »

Astrophysics

Synopsis: Testing for Black Hole “Bumps”

Alternative gravity theories would result in “bumpy black holes,” which might be identifiable in x-ray observations. Read More »

Condensed Matter Physics

Viewpoint: Electrons Travel Between Loosely Bound Layers

Tungsten-ditelluride cleaves easily into atomically thin layers, but its electrons conduct almost isotropically, suggesting a rare case of good charge conduction across weak mechanical bonds. Read More »

Materials Science

Synopsis: Runaway Buckling

The buckling of mechanical beams under a compressive force can be tuned by adding holes into the beam. Read More »

Quantum Information

Viewpoint: Sending Quantum Messages Through Space

Fragile photon states useful for quantum communication can be faithfully transmitted and distinguished over a link between an orbiting satellite and a telescope on Earth. Read More »

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