Updating quantum cryptography and communications 2016

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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.

Within the past several years, Chinese researchers have achieved a track record of consistent advances in basic research and in the development of quantum technologies, including quantum cryptography, communications, and computing, as well as reports of progress in quantum radar, sensing, imaging, metrology, and navigation.

Their breakthroughs demonstrate the successes of a long-term research agenda that has dedicated extensive funding to this domain while actively cultivating top talent.

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.

This is due to the fact that the physicists collaborating with the company Tesat-Spacecom and the German Aerospace Center have now created one precondition for using quantum cryptography to communicate over large distances as well without any risk of interception.

Going forward, if China succeeds in becoming a pioneer in quantum computing, then the leveraging of such immense computing capabilities could convey strategic advantage, placing sensitive information systems at risk.

Meanwhile, Chinese researchers claim to have achieved notable advances in quantum radar, sensing, imaging, metrology, and navigation, which enable greater precision and sensitivity. As China shifts its most sensitive military, governmental, and commercial communications to quantum networks, this transition could enhance information security, perhaps frustrating U. cyber espionage and signals intelligence capabilities, though these systems will likely remain susceptible to exploitation nonetheless.

In addition, early research in quantum materials, such as topological insulators, may enable new paradigms of information processing, have applications in clean energy, and even be used in one pathway to quantum computing. Although it is difficult to predict the trajectories and timeframes for their realization, these dual-use quantum technologies could “offset” key pillars of U. military power, potentially undermining critical technological advantages associated with today’s information-centric ways of war, epitomized by the U. At the same time, this national transition to quantum cryptography could ensure that China will be more secure against the more distant threat that a future quantum computer might be able to break prevalent kinds of cryptography using Shor’s algorithm.

Rather than relying primarily on the “absorption” of foreign technologies in its pursuit of indigenous innovation, China instead intends to achieve truly disruptive, even “radical” innovation (源头创新) in strategic emerging technologies, including biotechnology and artificial intelligence.

As China advances a national strategy for military-civil fusion (or “civil-military integration,” 军民融合), these critical technologies also will be leveraged for a range of defense applications.

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