  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.
