Quantum apocalypse. Free Technical Library News

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quantum apocalypse

05.02.2022

Breaking today's most complex encryption would take virtually forever, but experts warn that with the advent of quantum computers, this process could be reduced to a few seconds. Such technologies will lead humanity down a potentially dangerous path if they fall into the wrong hands.

"Everything we do online today," says Harry Owen, director of strategy at PostQuantum, "from online shopping and banking to social media interactions, everything we do is encrypted." But quantum computers could allow attackers to "cleanse users' bank accounts by completely disabling complex security systems," warns Owen.

Ilyas Khan, chief executive of Quantinuum, agrees with his colleague and calls encryption-cracking quantum computers "a threat to our way of life."

And while the quantum apocalypse is probably many years away (if it ever happens), governments around the world are already beginning to act to prevent the worst-case scenario from developing. For example, the US Department of Commerce recently blacklisted a number of Chinese firms, some of which were added due to their potential ability to break traditional encryption methods.

Researchers at tech giants like Google and Microsoft are hoping to get ahead of the curve by doing quantum verification of important secret data. The US National Institute of Science and Technology also hopes to develop a unified strategy for protecting sensitive information.

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Random news from the Archive

warm windows 06.11.2004

Heat-reflecting coatings for glass have been known for a long time and are often used in the windows of south-facing buildings.

In hot weather, they reject the infrared rays of the Sun, maintaining an acceptable temperature in the rooms. But, unfortunately, in winter, when heating by the sun's rays would not hurt, these glasses continue to reflect heat.

This is not how a new glass coating developed by English chemists from University College London and the University of Liverpool behaves. Several decades ago, scientists discovered that vanadium dioxide, which transmits infrared rays at ordinary temperatures, becomes opaque to these rays if it is heated above 68 degrees Celsius.

English chemists, by adding traces of tungsten to vanadium dioxide, were able to reduce the transition temperature to 29 degrees Celsius. When newly coated glass is heated to this temperature, it begins to reflect heat rays. In the meantime, the temperature of the glass is lower, it passes them and heats the room. It is estimated that on sunny winter days, apartments on the south side of buildings with such window panes can save up to half of heating costs.

The coating is applied by keeping the freshly made, still hot sheet glass in an atmosphere of two gases - vanadium oxytrichloride and tungsten hexachloride at atmospheric pressure.

Two problems must be overcome before mass production of the new glass can begin. First, the self-adjusting coating gives the glass a yellowish-greenish tint. To neutralize it, blue dyes can be introduced into the glass. Secondly, the new coating can be washed off when washing windows. Apparently, it will be necessary to protect the heat-regulating glass on both sides with sheets of ordinary glass.

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