Fundamental Physics

Experimental Physics Matter and Antimatter Quantum Mechanics Atomic Transitions Particle Physics Standard Model Theoretical Physics Dark Matter Research Mass States Constants of Nature

4 ARTICLES

yesterday

First Working Nuclear Clock Built Using Thorium-229

Researchers lock ultraviolet lasers to a low-energy thorium-229 nuclear transition in room-temperature crystals, creating a compact platform for precision metrology that can probe dark-matter signals.

3 ARTICLES

5mo ago

Breakthrough Prize Gala Honors Scientific Achievements with $3 Million Awards

Fundamental Physics

First Working Nuclear Clock Built Using Thorium-229

Researchers Drive Thorium-229 Nuclei With Laser Inside Opaque Solid

Electroplated Thorium on Steel Delivers Key Step Toward Compact Nuclear Clocks

JUNO Neutrino Observatory Starts Data Taking After 20,000-Ton Fill

China's JUNO Neutrino Observatory Starts Collecting Data to Probe Mass Ordering

Enhanced Dual-Comb Spectroscopy Reveals Previously Unknown Samarium Transitions

Largest Global Optical Clock Comparison Paves Way to Redefine the Second

Atomic Clocks Installed on ISS Begin 30-Month Physics Experiment

Breakthrough Prize Gala Honors Scientific Achievements with $3 Million Awards