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Quantum complications

While we grapple with data safety in the computing systems that we already use, other scientists are developing technology that could completely transform the field of data security for the devices of tomorrow. In contrast to ordinary computers whose logical ‘bits’ can only take values of 0 or 1, quantum computers use ‘qubits’ that can have values of 0, 1 or a combination of both values. This capability opens up an entirely new domain of logic and mathematics, allowing quantum computers to solve complex problems in a fraction of the time it would take a conventional machine. This revolution will arrive with great benefits, but will bring its own problems, as Leonid Krivitsky at the A*STAR Data Storage Institute explains:
“Many cryptography systems rely on hard problems such as prime factorization — the fact that it is very difficult to figure out the prime factors of a given number. However, theoretical work has shown that the factorization problem could be solved very quickly using a quantum computer. So, once a universal quantum computer is built, it could hack ciphers which were previously thought to be unbreakable.”
This might seem alarming, but there is no reason to panic. Functional quantum computers are still a long way off, and to counteract the potential threats, many groups around the world are contributing to the growing field of quantum cryptography, which will redefine our protocols of secure communication. In fact, the new cryptography algorithms made available by quantum computers could provide ultra-high data security long before any risks become a concern.
“I foresee the use of a quantum communication channel as a backup resource for highly sensitive transactions, where security is more important than the transmission speed,” says Krivitsky.
For now, though, the challenge is to physically build a stable quantum computer. Krivitsky and co-workers are exploring the possibility of using tiny defects in synthetic diamonds to act as nodes which process and store quantum information.
“We place several diamonds on a single chip and communicate with optical links, similar to those which form the background of the internet,” says Krivitsky. “Our innovations will enable transmission of quantum information over long distances and contribute to the development of a worldwide quantum network.”
Safeguarding the future
The task of keeping our data secure is clearly a complicated and interdisciplinary challenge. A*STAR researchers are not only developing new technical initiatives, but also working at the forefront of global efforts to raise awareness of data security. By looking for chinks in the armor of global systems like GSM and cloud storage, educating the public about the commercial value of their data, and planning for the future paradigm shift that might be brought about by quantum computers, it is reassuring to know that the brightest minds at A*STAR are focused on keeping our data safe.

WRITTEN BY SABRN

KUIFANYA SIMU YAKO IWE NA UWEZO KUPITA IPHONEE X NA KUTUMIA MB ZA BURE BONYEZA APA CHINI During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip. During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip.
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SKYRMIONS
   Given the exponential consumption of information in society today, there is a growing need for high density memory devices. These data system technologies will require high-density, non-volatile memory (NVM) cells with instantaneous access and energy-efficient readout.
Magnetic skyrmions represent a promising alternative as they can bring down the size of the memory devices to below 10nm. The properties of magnetic skyrmions have tremendous potential in realising future high-density and energy-efficient NVM as well as magnetic logic devices.
SABRN

KUIFANYA SIMU YAKO IWE NA UWEZO KUPITA IPHONEE X NA KUTUMIA MB ZA BURE BONYEZA APA CHINI During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip. During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip.
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DIELECTRIC NANOANTENNAS

   Plasmonics appeared more than a decade ago as a new research direction with high potential for future industrial applications. However, plasmonic materials are not compatible with Complementary metal–oxide–semiconductor (CMOS) technology and experience strong energy losses in the optical spectral range. This strongly limits their real-world application.

In the Dielectric Nanoantennas Pharos Programme, we are working on the development of dielectric and semiconductor nanostructures as a substitute for plasmonics for various optoelectronics applications. A unique advantage of these dielectric and semiconductor nanostructures is that they are almost loss-free and possess strong resonant behaviour at optical frequencies similar to plasmonic nanostructures.

written by sabin

KUIFANYA SIMU YAKO IWE NA UWEZO KUPITA IPHONEE X NA KUTUMIA MB ZA BURE BONYEZA APA CHINI During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip. During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip.
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ELECTRONICS

The Electronics Cluster promotes R&D and innovation to support the Data Systems Technologies, and Semiconductor sectors. With the growth of Big Data and the opportunities going beyond Moore’s Law (“More-than-Moore”), there are many new exciting opportunities to be explored in the electronics field in the years to come. We seed and build up a suite of competitive capabilities within our research community that will be relevant to the local and global electronics industry. These capabilities include advanced packaging, sensors and actuators, memory devices, nanophotonics etc.

The upstream programmes launched under the Electronics Cluster can be categorized under Dielectric Nanoantennas and Skyrmions.

written by Sabina

KUIFANYA SIMU YAKO IWE NA UWEZO KUPITA IPHONEE X NA KUTUMIA MB ZA BURE BONYEZA APA CHINI During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip. During its two year run, the project will award approximately 100 major reporting grants and provide mentoring to support the best ideas for stories on development issues. Journalists who produce the best stories published or broadcasted in media that reach African audiences, will win a major international reporting trip.
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