Mach-Zehnder Interferometer for spin waves: computing applications

Interferometers are some of the most important optical devices, yet their spin wave based analogues so far received limited attention. In this work we demonstrate how one can design Mach-Zehnder Interferometer (MZI) operating on spin waves, and use to construct a spin wave version of a well known1 MZI based AI computing device. Modeling, performed both micromagnetically and by using a novel, finite difference based method, shows that some of the achievable operational parameters are orders of magnitude superior to both optical and CMOS based implementations.