Researchers demonstrated a new optical atomic clock that uses a single laser and doesn't require cryogenic temperatures. By greatly reducing the size and complexity of atomic clocks without ...

Physicists have demonstrated all the ingredients of a nuclear clock — a device that keeps time by measuring tiny energy shifts inside an atomic nucleus. Such clocks could lead to vast improvements in ...

Atomic clocks only deviate by one second in millions of years. Nevertheless, even more precise timepieces are sometimes needed for basic research. Researchers at the Vienna University of Technology ...