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Cover Image
Cover Image
Cover: Quantum effects in chemical reactions can be simulated on high-performance classical computers, but the results are accurate only for small systems. Researchers hope that future generations of quantum computers will be able to model hundreds or thousands of molecules and thus could, for example, accelerate R&D of pharmaceuticals. See the article by Klaus Liegener, Oliver Morsch, and Guido Pupillo on page 34 for more on how quantum computing could improve chemical modeling. (Image by Freddie Pagani.)
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Search and Discovery
A quintessential quantum simulator takes a 10 000-fold leap
Experiments on the fermionic Hubbard model can now be made much larger, more uniform, and more quantitative.
A titanium:sapphire laser on a chip
The miniaturized laser has a lowered output power suited for many applications without sacrificing stability and tunability.
Updates
Seeing the softer side of nanoparticles
Nanoparticles are coated with organic molecules that influence their size, shape, and behavior. A new technique opens a window to imaging those molecules in action.
Antarctic ice shelves are prone to slush
A new analysis suggests that researchers have been underestimating the amount of meltwater sitting atop Antarctica’s floating glacial ice.
A right-handed molecule is coaxed to behave like a left-handed one
Electrons in a chiral molecule, if excited by ultrafast light pulses, can give the molecule entirely different properties.
Issues and Events
Research facilities strive for fair and efficient time allocation
Distributed evaluations, machine learning, and lotteries are among the tactics being tested to improve the process and integrity of peer review.
NOAA to train thousands for jobs that will advance climate resilience
Disadvantaged communities in coastal areas will participate in the new initiative.
Q&A: Rebecca Smethurst, black hole researcher and YouTube star
Dr. Becky aims to shrink the gender imbalance in the viewership of her astronomy videos.
Articles
The black powder behind battery power
Carbon black, a key ingredient in ancient inks, is used today to make the porous electrodes found in many rechargeable batteries. Understanding how to control its microstructure can pave the way to better-performing batteries.
Solving quantum chemistry problems on quantum computers
One of the earliest applications that the new era of computing may be used for is the simulation of the quantum effects that drive chemical reactions.
Grete Hermann’s ethical philosophy of physics
The case of a pioneering woman physicist and philosopher illustrates that we must look beyond hagiography to gain an accurate picture of the history of quantum physics.
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A menagerie of Martian auroras
The red planet’s auroral activity stems from processes that are not seen on Earth.