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Fluid Dynamics

Synopsis: Hydrodynamic Cloaks

Two separate groups have designed structures that can hide objects from fluid flows and surface waves so that no wake is visible. Read More »

Astrophysics

Synopsis: Seeking Stardust in the Snow  

Iron-60 found in fresh Antarctic snow was forged in nearby supernovae and could help deduce the structure and origin of interstellar dust clouds.   Read More »

Quantum Information

Focus: Entangling Photon Sources on a Tiny Bridge

Researchers entangled a pair of atomic-scale light emitters in a micrometer-scale device, which could potentially be useful for quantum communication and cryptography. Read More »

Quantum Physics

Synopsis: Entangling the Radial Parts of Photons

Correlations between the radial position and radial momentum of entangled photons demonstrate the suitability of these properties for quantum information applications.   Read More »

Atomic and Molecular Physics

Synopsis: Watching a Molecule Relax While it Reacts

Atomic force microscopy detects the subtle structural changes that take place when a molecule is ionized. Read More »

Astrophysics

Synopsis: Laser Stars for Astrophysical Calibrations

Laser-generated “stars”—used at telescopes to correct for atmospheric turbulence—could help researchers calibrate the wavelengths of certain astrophysical observations. Read More »

Strongly Correlated Materials

Viewpoint: A Laser-Sharp View of Electron Correlations

A high-resolution photoemission experiment provides an unprecedented test of a theory describing the effects of strong electron correlations in solids. Read More »

Photonics

Focus: Light Seems to Pull Electrons Backward

Light hitting a metal surface at an angle sends the electrons moving in the direction opposite to the light, a result that puzzles theorists. Read More »

Topological Insulators

Synopsis: Topological Insulators Do the Twist

Theorists uncover a new magnetomechanical effect in topological insulators that are hotter than their environment. Read More »

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