Viewpoints

Putting a New Spin on Heat Flow

Putting a New Spin on Heat Flow

July 7, 2014

Joseph P. Heremans and Stephen R. Boona

Researchers demonstrate, for the first time, the spin Peltier effect, in which a spin current in a metal causes heat flow in an adjoining magnet.

Quantum Jostling Proves Diverting for Electrons in a Metal

Quantum Jostling Proves Diverting for Electrons in a Metal

June 30, 2014

Rex Godby

A new model shows that quantum fluctuations make a significant contribution to a metal’s low-temperature resistance.

Diagnosing Leukemia Through Entropy

Diagnosing Leukemia Through Entropy

May 28, 2014

Robert Vogel, Carly G. K. Ziegler, and Grégoire Altan-Bonnet

Measurements of the entropy of immune cell distributions can provide a reliable tool for the diagnosis of acute myeloid leukemia.

Shaping the Future of Quantum Computation

Shaping the Future of Quantum Computation

May 27, 2014

Peter van Loock

A clever measurement technique reveals that a frequency comb of down-converted laser light contains entanglement ready-made for quantum information processing.

Synopses

Blowing Bubbles on the Nanoscale

Blowing Bubbles on the Nanoscale

July 9, 2014

Scientists have now developed a new controlled method to superheat liquids and induce the formation of bubbles in a nanoscale container.

Simple Molecules for Accurate Clocks

Simple Molecules for Accurate Clocks

July 8, 2014

Researchers propose using one-electron molecules for a new class of ultrahigh-precision clocks.

Sound Switch

Sound Switch

July 3, 2014

A novel type of acoustic metamaterial made of rubber and metal absorbs or transmits sound waves, depending on how the material is squeezed.

Gluons Chip in for Proton Spin

Gluons Chip in for Proton Spin

July 2, 2014

A new analysis of high-energy data shows that gluons may provide some of the proton’s missing spin.

Focus

Plasma Extremes Seen through Gas Bubble

Plasma Extremes Seen through Gas Bubble

July 7, 2014

Sound-stimulated gas bubbles in liquid become tiny plasmas and may provide a test bed for plasma physics theories.

Thin-film Peeling is Not Always Smooth

Thin-film Peeling is Not Always Smooth

June 6, 2014

The attractive force that allows geckos to walk on the ceiling fluctuates in time at the nanoscale, potentially causing a gecko’s feet to detach from a surface more easily than previous theories suggested.

Notes from the Editors

<title>BICEP2 Images the Past, Cosmology Looks to the Future</title>

BICEP2 Images the Past, Cosmology Looks to the Future

June 19, 2014

BICEP2’s report of possible evidence for cosmic inflation has been published in Physical Review Letters. A special Viewpoint commentary and Focus story put the result in context.


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