Updating quantum cryptography and communications 2016 gaurav chopra da dating truths

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While continuing to explore options for post-quantum encryption, the U. government should start to evaluate the costs and timeframes associated with a military- and government-wide transition from today’s prevalent forms of encryption to a new regime, which might require considerable changes to the underlying information infrastructure.The Department of Defense (Do D) also should undertake further analysis of the utility of available forms of quantum cryptography and communications to secure military information systems. However, the concepts presented there were mostly of theoretical interest, because the technology involved in implementing them wouldhave been far beyond the reach of our current knowledge.In particular, single polarized photons had to be trapped, bounding back and forth between perfectly reflecting mirrors, and perfect efficiency in photon detection was required.Meanwhile, the introduction of quantum navigation may allow greater independence from space-based systems, and the realization of quantum radar, imaging, and sensing would enhance domain awareness and targeting, potentially undermining U. investments in stealth technologies or even allowing for the tracking of submarines.In the aggregate, these advances could support the continued emergence of the Chinese People’s Liberation Army (PLA) as a true peer competitor in these new technological frontiers of military power.

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They measured the quantum states of light signals which were transmitted from a geostationary communication satellite 38,000 kilometers away from Earth.As developments in quantum radar, sensing, imaging, metrology, and navigation become more mature, the Do D also should consider further prototyping of and experimentation with these technologies.Going forward, although the full impact of this second quantum revolution remains to be seen – and some skepticism is warranted – the United States must mitigate the long-term risks of technological surprise in this domain through leveraging its existing advantages in innovation.More versatile than originally thought: A part of the Alphasat I-XL was actually developed to demonstrate data transmission between the Earth observation satellites of the European Copernicus project and Earth, but has now helped a group including researchers from the Max Planck Institute for the Science of Light to test the measurement of quantum states after they have been transmitted over a distance of 38,000 kilometers.What started out as exotic research in physics laboratories could soon change the global communication of sensitive data: quantum cryptography.

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