DARPA RFP for Chip Scale Atomic Clock

The Defense Advanced Research Projects Agency (DARPA) is soliciting research proposals in the area of Chip-Scale Atomic Clock (CSAC). Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices or systems. Specifically excluded is research that primarily results in evolutionary improvement to the existing state-of-practice. DARPA seeks innovative proposals in the area of microelectromechanical systems (MEMS) implementation of CSAC. The final goal is to demonstrate an integrated, MEMS-fabricated, ultra miniaturized atomic time and frequency reference units that will achieve significant reductions in size (for example, 1 cm cubed in final package excluding battery) and power consumption (on the order of 30 mW) over state-of-the-art devices, while providing frequency accuracy on the order of 1x10 to the negative 11th power (Allen deviation at one-hour integration time).
http://cryptome.org/darpa070601.txt