![]() "Shrinking atomic clocks from large cesium beam tubes to chip-scale devices without eroding performance requires a rethinking of a number of critical components, including vacuum pumps and optical isolators as well as new approaches to component integration," said Dr. ![]() Calibration requirements and frequency drift can generate timing errors, making it difficult to achieve the highest degrees of accuracy and reliability in a portable package.ĭARPA's Atomic Clock with Enhanced Stability (ACES) program is exploring the development of next-generation, battery-powered CSACs with 1000x improvement in key performance parameters over existing options. However, the performance of these first-generation CSACs are fundamentally limited due to the physics associated with their designs. Over the past few decades, DARPA has invested heavily in the advancement and miniaturization of atomic clock technology, generating chip-scale atomic clocks (CSACs) that are now commercially available and offer unprecedented timing stability for their size, weight, and power (SWaP). ![]() New applications and technologies like 5G networks and GPS alternatives will require precise timekeeping on portable platforms, driving a demand for miniaturized atomic clocks with a high degree of performance. Harnessing the power of atoms for precise timing requires a host of sophisticated and bulky technologies that are costly to develop and consume large amounts of energy. Many of today's communications, navigation, financial transaction, distributed cloud, and defense applications rely on the precision timing of atomic clocks - or clocks that track time based on the oscillation of atoms with the highest degrees of accuracy.
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