transportable optical lattice clock

A transportable optical lattice clock is a highly precise timekeeping device that can be moved from place to place without losing accuracy. It uses lasers to trap and measure the vibrations of atoms—in this case, typically strontium or ytterbium—that oscillate at extremely consistent frequencies. By comparing these atomic vibrations to the standard definition of a second, the clock keeps very accurate time. Because it is portable, it can be deployed for scientific research, navigation, or testing fundamental physics in various environments, extending the power of ultra-precise time measurement beyond a fixed laboratory setting.