Viewpoints

Two Photons into One

Two Photons into One

October 22, 2014

Zheshen Zhang

The interaction between two individual photons in a nonlinear optical waveguide offers new possibilities for quantum information processing.

Particle Scattering Simplified

Particle Scattering Simplified

October 20, 2014

Lance J. Dixon

A new formula for the scattering of massless particles may simplify predictions and analyses of LHC experiments and shed new light on quantum gravity theories.

Magnetic Fields Lock in the Heat for Fusion

Magnetic Fields Lock in the Heat for Fusion

October 14, 2014

Riccardo Betti

Sandia researchers demonstrate that magnetic fields help retain heat in an imploding pellet of fuel, increasing the number of fusion reactions.

A Challenge to Lepton Universality

A Challenge to Lepton Universality

October 6, 2014

Gudrun Hiller

The finding that electrons and muons aren’t produced equally in certain particle decays may hint at a crack in the standard model.

Synopses

A Shield for Rydberg Atoms

A Shield for Rydberg Atoms

October 23, 2014

The quantum properties of cold rubidium atoms on a chip can be protected by a thin metal layer on the chip’s surface.

Friction Gradients Guide Artificial Walkers

Friction Gradients Guide Artificial Walkers

October 22, 2014

Pairs of micrometer-sized magnetic beads could “hunt” for chemicals by sensing changes in surface friction.

Seeing the Glass of Milk as All Empty

Seeing the Glass of Milk as All Empty

October 21, 2014

A normally opaque medium can become fully transparent to properly tailored acoustic waves.

Wedding Registries Reveal Migration Paths

Wedding Registries Reveal Migration Paths

October 16, 2014

The long-term movement of Korean migrants, as recorded in genealogy books, follows a statistical pattern that combines aspects of both diffusive and convective flows.

Focus

Saving Space with Quantum Information

Saving Space with Quantum Information

October 17, 2014

A technique that packs the full content of three bits of quantum information into two may be a space saver for quantum computers.

Nobel Prize—Seeing Single Molecules

Nobel Prize—Seeing Single Molecules

October 13, 2014

The Nobel Prize in Chemistry recognizes the development of super-resolved fluorescence microscopy. Much of this field can be traced back to the first detection of single molecules in solids.

Notes from the Editors

Blue Was the Hardest Color

Blue Was the Hardest Color

October 13, 2014

The winners of the 2014 Physics Nobel Prize solved several major engineering problems over a period of decades before finally producing a useful blue LED.


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