Viewpoints

Trapped Ions Make Impeccable Qubits

Trapped Ions Make Impeccable Qubits

November 24, 2014

Qubits based on trapped ions can be prepared and manipulated with record-breaking accuracy, offering a promising scalable platform for quantum computing.

Time Trials for Fundamental Constants

Time Trials for Fundamental Constants

November 17, 2014

Marianna S. Safronova

Single-ion clocks yield new limits on how much the proton-to-electron mass ratio and the fine structure constant change over time.

New Light Shed on Dark Photons

New Light Shed on Dark Photons

November 10, 2014

Douglas Bryman

A search for a photonlike particle that could be related to dark matter has come up empty, putting new constraints on models that imagine a dark form of electromagnetism.

Pushing on a Nonlinear Material

Pushing on a Nonlinear Material

November 3, 2014

Karen Daniels

Experiments on a model “soil” give new insight into the elasticity of nonlinear materials.

Synopses

Beer Forms Sudsy Surprise

Beer Forms Sudsy Surprise

November 20, 2014

An investigation of the pub prank “beer tapping” provides a better understanding of gas-driven eruptions that occur in carbonated beverages, as well as in volcanic environments.

Magnetoresistance That Doesn’t Stop

Magnetoresistance That Doesn’t Stop

November 19, 2014

A near perfect balance between electrons and holes explains why WTe2’s huge magnetoresistence doesn’t saturate at high fields, reaching 13 million percent at 60 tesla.

Quantum Search Gets an Update

Quantum Search Gets an Update

November 18, 2014

A well-known quantum search method, called Grover’s algorithm, has been modified to handle a wider variety of search problems.

Unraveling the Vortex

Unraveling the Vortex

November 17, 2014

The destruction of a magnetic vortex in a permalloy chip is imaged in real time.

Focus

Using Plasma to Manipulate Light

Using Plasma to Manipulate Light

November 14, 2014

The polarization of an intense laser beam can theoretically be controlled by mixing it with a second beam in a plasma.

Fluid Jet Acquires Wings

Fluid Jet Acquires Wings

November 7, 2014

A high-speed jet of certain fluids will form multiple wings, or archlike structures, when hitting a solid surface.

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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