Physicists revive 1990s laser concept to propose a next-generation atomic clock
Summary
Phys.org reports a theoretical blueprint for a next-generation atomic clock driven by a highly synchronized, collective laser emission. The approach adds an extra energy level to enable continuous operation and reduce heating, with calculations suggesting an ultra-narrow linewidth and reduced sensitivity to cavity fluctuations. If realized, this could advance precision timekeeping and enable new capabilities in interferometry and fundamental physics tests.