The bizarre phenomena of the quantum world can increasingly be used: In the December issue, BILD DER SCIENCE reports on the progress in implementing quantum research into applications. The focus is on the sophisticated processes and possible risks of the groundbreaking technology.
In the first article of the five-part title topic “Quants on the move”, BDW editor Ralf Butscher first summarizes the most important aspects of quantum physics and addresses the already established applications. However, as he explains, the second generation systems reach completely new dimensions. Phenomena such as the entanglement and superposition of particle states can now be controlled by controlling individual quantum particles such as electrons or photons.
There has been considerable progress: quantum sensors, quantum cryptography and quantum computing are already achieving practical applicability with breathtaking potential. However, there are still a number of challenges in the development of second-generation quantum technologies, reports Butscher in the article “It smells like revolution”.
The BDW author Dirk Eidemüller then presents an exciting process that will benefit the development of new quantum technologies: the use of diamonds. The quantum physicists are not interested in particularly perfect crystals, but rather in specimens in which the order of the diamond lattice is disturbed in a special way. The author explains why quantum information can be transferred in a usable way between these so-called defect centers. This makes them sought after and promising for use in quantum computers, quantum networks and quantum sensing, according to the article “Quantum Diamonds”.
The third sub-article focuses on a specific area of application of quantum technology: Eidemüller reports on a new type of nuclear spin microscope that can provide high-resolution images of molecular processes for the first time. As he explains, diamond defect centers act as highly sensitive mini-magnetometers. In addition to cancer diagnostics, research into battery materials could also benefit from this technology, reports the author in the article “Quantum jumps in the tube”.
Opportunities and dangers
It continues with a contribution to the potential of quantum technology for communication. In it, Eidemüller reports on the status of developments in procedures for the secure exchange of data. As he explains, the quantum mechanical effect of the entanglement of two particles plays a central role. There is potential for a number of new possibilities for cryptography and coupling of quantum computers. Europe in particular appears to be well positioned when it comes to the development of quantum communication and its security, according to the article “A new type of Internet”.
An article by BDW author Bernd Müller highlights a more threatening side of quantum technology. In it he explains why the development of quantum computers threatens data security on the Internet. Accordingly, their superior performance could soon open up completely new opportunities for secret service spies and criminal forces. But there is hope: researchers want to counteract the goings-on with so-called post-quantum technology. The author describes how it works in the article “Last bulwark against data theft”.
You can read the articles on the cover topic “Quants on the move” online as part of a bdw+ subscription, or you can find them in the December issue of BILD DER SCIENCE, which will be available in stores from November 21st.