![]() Calling for further theoretical and experimental investigation, the authors assert that even if the precision of such clocks turns out to be less competitive than the fountains, the optical lattice clocks have a clear advantage of a smaller apparatus size, making them useful in applications like navigation systems and precision tests of fundamental symmetries in space. While a portable cesium clock could benefit numerous scientific and general applications, the expected accuracy of the optical lattice clocks has yet to be explored. This property allows the atomic clock to function properly at a smaller size. By applying an external magnetic field to the lattice in a specific direction, the atomic clock is rendered insensitive to the laser field strength. But the lasers can hamper the time keeping ability of the atoms. ![]() Optical lattices are created by trapping atoms in a standing wave light field formed by laser beams. Defense Advanced Research Projects Agency (DARPA) has announced the Robust Optical Clock Network (ROCkN) program, which aims to create optical atomic clocks with low size, weight, and power (SWaP) that yield timing accuracy and holdover better than GPS atomic clocks and can be used outside a laboratory. ROCKn is designed to make optical atomic clocks portable DARPA View 1 Images DARPA has announced a new initiative called the Robust Optical Clock Network (ROCkN) program, which will. Physicists from the University of New South Wales, Australia and the University of Nevada, Reno propose a method to reduce the size of atomic clocks to handy, compact devices using specially engineered optical lattices. ![]()
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