Viewpoints

Sending Messages with a Quantum Seal

Sending Messages with a Quantum Seal

July 21, 2014

Hermann Kampermann

With a simple optical experiment, researchers have demonstrated a quantum digital signature scheme for identifying the sender of an electronic message without requiring the use of quantum memories.

A New Approach to the Matching Problem

A New Approach to the Matching Problem

July 21, 2014

Stephan Mertens

Mathematical tools from physics are enabling new ways to study a classic optimization problem.

A Critical Test of Quantum Criticality

A Critical Test of Quantum Criticality

July 14, 2014

Martin Klanjšek

Theoretically predicted quantum critical behavior in a model magnetic material has been experimentally confirmed at a quantitative level.

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.

Synopses

Top Quark Mass Gets an Update

Top Quark Mass Gets an Update

July 17, 2014

A new analysis of data from the Tevatron delivers the most precise value of the top quark mass based on a single measurement.

Electronic Tuning of Spin Waves

Electronic Tuning of Spin Waves

July 16, 2014

In a magnetic material with strong spin-orbit coupling, the phase of spin waves can be controlled with an electric field.

Competing for Advantage in a Phonon Laser

Competing for Advantage in a Phonon Laser

July 15, 2014

Mode competition—a well-known phenomenon in photon lasers—has now been studied and controlled in phonon lasers.

Spooky Bidding

Spooky Bidding

June 12, 2014

Quantum information could let bridge players improve their bids.

Focus

New Medical Scan Requires Less Touching

New Medical Scan Requires Less Touching

July 18, 2014

A medical imaging technique uses electric and magnetic fields to generate vibrations in tissues and measure their mechanical stiffness in a new way.

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>Bargaining for a Better Helium Deal</title>

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.


Keep Up With Physics

twitter icon feed icon mail icon

American Physical Society Sites


APS Home

Journals

PhysicsCentral

Physics Frontline