Viewpoints

Victory for the Quantum Code Maker?

Victory for the Quantum Code Maker?

September 29, 2014

Roger Colbeck

To fend off potential hackers, researchers have taken a theoretical step closer to realizing a device-independent quantum cryptography protocol.

The Stopping Power of Hot Nuclear Matter

The Stopping Power of Hot Nuclear Matter

September 22, 2014

Cristina Manuel

LHC experiments show that the quark-gluon plasma stops jets made of light and heavy quarks equally well, offering insights into a state of matter thought to have existed in the early Universe.

Observing the Great Spin and Orbital Swap

Observing the Great Spin and Orbital Swap

September 15, 2014

Ana Maria Rey

The experimental observation of spin-orbital exchange interactions in ultracold atoms opens a window for the exploration of poorly understood magnetic behaviors.

Diamond and Silicon Get Entangled

Diamond and Silicon Get Entangled

September 11, 2014

Andrew D. Greentree

Two silicon-vacancy centers in diamond can emit photons that are indistinguishable—suggesting they have potential as building blocks for a diamond-based quantum computer.

Synopses

Water-Repelling Surfaces Made Stable

Water-Repelling Surfaces Made Stable

September 25, 2014

The water-repelling properties of superhydrophobic surfaces may last longer when they’re used at shallower depths.

One Very Cold Atom

One Very Cold Atom

September 24, 2014

Researchers have demonstrated a new source of individual helium atoms at picokelvin temperatures, paving the way for testing the entanglement of particles with mass.

Cavities Play Catch with Photons

Cavities Play Catch with Photons

September 23, 2014

A single photon with an optimally shaped waveform can be loaded into a cavity with near-unity efficiency.

More Dark Matter Hints from Cosmic Rays?

More Dark Matter Hints from Cosmic Rays?

September 18, 2014

A particle detector onboard the International Space Station has revealed differences between the spectrum of cosmic-ray positrons and electrons, which might be a hint of dark matter annihilation processes.

Focus

Single Molecule Microphone

Single Molecule Microphone

September 26, 2014

A single molecule can work as a vibration sensor that can detect displacements nearly as small as a proton.

Curvy Photon Trajectories Could Be Detectable

Curvy Photon Trajectories Could Be Detectable

September 19, 2014

Quantum mechanics permits particles to follow bizarre, looping and curving trajectories, usually with very low probability. But a calculation shows that in some cases, these paths can have significant and possibly measurable effects.

Notes from the Editors

Bargaining for a Better Helium Deal

Bargaining for a Better Helium Deal

July 17, 2014

A pilot program jointly run by the APS hopes to use the collective bargaining power of many researchers to negotiate a better price for liquid helium.


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