Search results for atomic clock

Quantum Physics Oct 22, 2020

Control ions for quantum computing and sensing via on-chip fiber optics

Walk into a quantum lab where scientists trap ions, and you'll find benchtops full of mirrors and lenses, all focusing lasers to hit an ion "trapped" in place above a chip. By using lasers to control ions, scientists have ...

Optics & Photonics Oct 20, 2020

Scientists record broad spectra with close to one hundred thousand colors in almost complete darkness

Our eyes are sensitive to only three spectral color bands (red, green, blue), and people can no longer distinguish colors if it becomes very dark. Spectroscopists can identify many more colors by the frequencies of the light ...

Optics & Photonics Oct 14, 2020

New microchip devices produce a wide range of laser hues

Researchers at the National Institute of Standards and Technology (NIST) and the University of Maryland have developed a microchip technology that can convert invisible near-infrared laser light into any one of a panoply ...

General Physics Oct 9, 2020

New NIST project to build nano-thermometers could revolutionize temperature imaging

Cheaper refrigerators? Stronger hip implants? A better understanding of human disease? All of these could be possible and more, someday, thanks to an ambitious new project underway at the National Institute of Standards and ...

Astronomy Oct 8, 2020

Signals from distant stars connect optical atomic clocks across Earth for the first time

Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different continents. The results were published in the scientific journal Nature Physics by an international collaboration ...

General Physics Oct 6, 2020

New measurement of nucleus of thorium-229 moves scientists step closer to a nuclear clock

A team of researchers from Germany and Austria has taken a new measurement of the nucleus of a thorium-229 isotope, moving one step closer to a nuclear clock. In their paper published in the journal Physical Review Letters, ...

Earth Sciences Oct 1, 2020

Earthquake forecasting clues unearthed in strange precariously balanced rocks

Precariously balanced rocks (PBRs) are formations found throughout the world where a slender boulder is balanced precariously on a pedestal boulder. They form as blocks preserved on cliffs, or when softer rocks erode and ...

Optics & Photonics Aug 24, 2020

A novel approach produces a completely new kind of dynamic light structure

It is not every day that scientists are able to produce an entirely new kind of light, but when they do the implications can be dramatic. When twisted light beams carrying orbital angular momentum were uncovered in 1992, ...

Condensed Matter Aug 17, 2020

First ever observation of 'time crystals' interacting

For the first time ever, scientists have witnessed the interaction of a new phase of matter known as "time crystals".

Political science Aug 7, 2020

It's been 75 years since Hiroshima, yet the threat of nuclear war persists

It is important to mark the solemn 75th anniversary of the first and only use of atomic weapons against cities as not only a remembrance of a tragic past event, but as a reminder of an ever-present threat that we have failed ...

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