Search results for atomic clock

General Physics Mar 24, 2021

Study compares three top atomic clocks with record accuracy over both fiber and air

In a significant advance toward the future redefinition of the international unit of time, the second, a research team led by the National Institute of Standards and Technology (NIST) has compared three of the world's leading ...

Quantum Physics Mar 10, 2021

Physics undergraduate proposes solution to quantum field theory problem

When physicists need to understand the quantum mechanics that describe how atomic clocks work, how your magnet sticks to your refrigerator or how particles flow through a superconductor, they use quantum field theories.

Optics & Photonics Mar 3, 2021

Breakthrough greatly enhances ultrafast resolution achievable with X-ray free-electron lasers

A large international team of scientists from various research organizations, including the U.S. Department of Energy's (DOE) Argonne National Laboratory, has developed a method that dramatically improves the already ultrafast ...

General Physics Feb 18, 2021

X-ray double flashes control atomic nuclei

A team of researchers from the Max Planck Institute for Nuclear Physics in Heidelberg has coherently controlled nuclear excitations using suitably shaped X-ray light for the first time. In the experiment performed at the ...

General Physics Feb 8, 2021

Neutrinos, atomic clocks and an experiment to detect a time dilation

Griffith University researchers are conducting an experiment at ANSTO that will test a revolutionary physics theory that time reversal symmetry-breaking by neutrinos might cause a time dilation at the quantum scale.

Other Jan 27, 2021

'Doomsday Clock' stuck at 100 seconds to midnight

The "Doomsday Clock" illustrating the perils facing the planet and mankind will remain at 100 seconds to midnight this year amid the threats of the coronavirus pandemic, nuclear war and climate change.

Quantum Physics Jan 21, 2021

Bringing atoms to a standstill: Researchers miniaturize laser cooling

It's cool to be small. Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the ...

Optics & Photonics Jan 19, 2021

Clocking electron movements inside an atom

Hard X-ray free-electron lasers (XFELs) have delivered intense, ultrashort X-ray pulses for over a decade. One of the most promising applications of XFELs is in biology, where researchers can capture images down to the atomic ...

Earth Sciences Jan 7, 2021

The Earth has been spinning faster lately

Scientists around the world have noted that the Earth has been spinning on its axis faster lately—the fastest ever recorded. Several scientists have spoken to the press about the unusual phenomenon, with some pointing out ...

Quantum Physics Dec 17, 2020

Learning about quantum vacuum by studying atoms

The Unruh-effect connects quantum theory and relativity. Until now, it could not be measured. A new idea could change this.

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