Magnonic integrated circuits have been demonstrated
A team of researchers has successfully constructed a basic building block of computer circuits using magnons to convey information, in place of electrons. The “magnonic half-adder,” described in Nature Electronics, requires just three nanowires, and far less energy than the latest computer chips.
Many talented researchers significantly contributed to the realization of the magnonic directional coupler. But I would specially like to underline the contribution of Dr. Qi Wang (currently with me at the University of Vienna), the lead author of the paper, who has proposed this fantastic half-adder and performed most of the investigations. Moreover, on this way, we were going shoulder-to-shoulder with Jun.-Prof. Philipp Pirro (TU Kaiserslautern) and supervised this research jointly.The proposed magnonic circuit is dedicated to the processing of binary, so-called digital, information used nowadays in any smartphone or computer. Nevertheless, the potential of the magnonic directional coupler goes far beyond the binary data in the area of more powerful unconventional computing. Philipp will use it to build a neuromorphic magnon computer with the operational principle inspired by the functionality of our brain. I plan to cool the system down to extremely small temperatures to get access to the fascinating quantum properties of magnons. The coupler opens indeed fantastic opportunities.