AI chips and data center communications see big funding; 75 startups raise $2 billion. The first quarter of 2025 saw six ...

Astronomers from the University of Sheffield and Pennsylvania State University have performed X-ray and optical observations ...

Scientists at CERN have made a groundbreaking discovery that deepens our understanding of why the Universe is made of matter ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World account is separate to any IOP acco ...

But if you want the ultimate in accuracy, you’ll want a quantum atomic interferometer. What that is, and how it will be possible to make one small enough to be useful, is half of the story.

We report an experimental realization of the delayed images in a hot rubidium atomic vapor. With a rubidium atomic vapor cell as slow light medium, the image quality of the experiment could be ...

Unlike the vast majority of elements, the rare earth element promethium has no stable isotopes, which means that it is ...

Abstract: In order to eliminate the light shifts and to increase the stability of gas-cell atomic clocks using optical pumping ... Results of the tests on a laboratory model using Rubidium-87 atoms ...

Rhenium is one of the rarest and most valuable metals in the world, known for its exceptional heat resistance, high melting ...

This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.