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Synopsis

Fewer Lasers Achieve Higher Fidelity Logic Gate

Researchers halve the number of lasers needed to implement a quantum logic gate between two different atomic species, a feat that could help to create a scalable quantum computer. Read More »

Opinion

Letters to the Editor—August 17, 2020

Physicists returning to the lab after the long shutdown adjust to lone-working protocols and appreciate some gains in productivity. Read More »

Focus

Sculpting a Waveguide with Light

A scheme for guiding high-intensity laser light allows a new level of control of the waveguide’s properties, which could boost the performance of laser-based particle accelerators. Read More »

Synopsis

Electron Spins Are Key in Nickelate Superconductors

A newly discovered superconductor has a surprisingly low transition temperature, but its electronic structure points the way to materials that superconduct at higher temperatures. Read More »

Viewpoint

Harvesting Energy from Falling Droplets

A clever coupling of triboelectric charging and the hydrophobic effect leads to a remarkably efficient electrical nanogenerator. Read More »

Synopsis

A Fine Positronium Puzzle

A high-precision measurement of positronium’s fine structure delivers a puzzling discrepancy with predictions from quantum electrodynamics. Read More »

Synopsis

Jumpstarting Electron Motion in Molecules

Ultrashort pulses of x rays swap electrons around in molecules of nitric oxide, an important first step to tracking charge motion in molecules. Read More »

Viewpoint

Sterile Neutrino Down but Not Completely Out

Neutrino experiments place the most stringent limits to date on a hypothetical fourth neutrino, but the possibility that such a particle exists remains open. Read More »

Focus

Machine Learning Makes High-Resolution Imaging Practical

A new acoustic technique involving machine learning could lead to cheaper and faster high-resolution medical imaging. Read More »

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