Fundamental Physics

Quantum Mechanics Experimental Physics Matter and Antimatter Timekeeping Atomic Transitions Fundamental Constants Particle Physics Standard Model Theoretical Physics Dark Matter Research

4 ARTICLES

3w ago

Two Teams Report Working Thorium‑229 Nuclear Clocks

The devices use thorium nuclei embedded in calcium‑fluoride crystals probed by vacuum‑ultraviolet lasers to open a room‑temperature path toward more resilient, ultra‑precise timekeeping.

4 ARTICLES

4w ago

Breakthrough Prize Gala Honors Scientific Achievements with $3 Million Awards

Fundamental Physics

Two Teams Report Working Thorium‑229 Nuclear Clocks

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