A new experiment involving a network of entangled atomic clocks could finally help us test how quantum mechanics fits with ...

Scientists propose using quantum-entangled clocks to test how gravity affects quantum mechanics in curved spacetime.

If, like me, you can't go a day without making sure your watch is synced to the second, you'll be delighted to learn that a new atomic clock has broken the record with an accuracy of 5.5 x 10⁻¹⁹ – ...

While their nuclear clock is still a work in progress, once realized it could transform not only timekeeping but also the study of physics, even affecting how scientists investigate the fabric of ...

Over the last several years, researchers have shown that it is possible to design clocks 1,000 times more precise than the atomic clocks that the original definition of the second is based on ...

The record-breaking achievement could lead to practical, utility-scale quantum computers that are both smaller and faster.

Key TakeawaysScientists have used laser-excited thorium-229 to probe for ultralight dark matter, even without a fully built ...

For nearly a century, scientists around the world have been searching for dark matter—an invisible substance believed to make up about 80% of the universe's mass and needed to explain a variety of ...

The atomic clock is an optical lattice that controls strontium atoms. Photo: K. Palubicki/NIST New clock just dropped, but it’ll only drop a second every 30 billion years while in operation.

The atomic clock used in modern timekeeping uses lasers to manipulate atoms of cesium-133 along a frigid shaft. Then microwaves blast into a huddled bundle of these atoms, and triggers their ...

Atomic scientists on Tuesday moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine, tensions in other world hot spots ...

The Doomsday Clock of the Bulletin of the Atomic Scientists, set at 89 seconds to midnight, is displayed during a news conference at the United States Institute of Peace, Tuesday, Jan. 28, 2025 ...