…[T]eam at Sandia National Laboratories envisions quantum inertial sensors as revolutionary, onboard navigational aids…Compass Navigation GPS

…In a major milestone toward realizing their vision, the team has successfully built a cold-atom interferometer, a core component of quantum sensors, designed to be much smaller and tougher than typical lab setups.  The team describes their prototype… showing how to integrate several normally separated components into a single monolithic structure.  In doing so, they reduced the key components of a system that existed on a large optical table down to a sturdy package roughly the size of a shoebox…


…If the team can re-engineer the sensor into a compact, rugged device, the technology could safely guide vehicles where GPS signals are jammed or lost…

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