Multifrequency Data Parallel Spin Wave Logic Gates

By their very nature, spin waves (SWs) with different frequencies can propagate through the same waveguide, while mostly interfering own species. Therefore, more SW encoded data sets coexist, propagate, and interact in parallel, which opens road toward hardware replication-free parallel processing. In this article, we take advantage of these features propose a novel SW-based computing approach. To explain validate proposed concept, byte-wide 2-input XOR 3-input majority gates are implemented validated by means Object-Oriented MicroMagnetic Framework (OOMMF) simulations. Furthermore, introduce an optimization algorithm meant to minimize area overhead associated multifrequency operation demonstrate that it diminishes gate 30% 41% for implementations, respectively. get inside on practical implications our proposal, compare conventional functionally equivalent scalar gate-based implementations terms area, delay, power consumption. Our results indicate optimized 8-bit require 4.47x 4.16x less respectively, at expense 5% 7% delay increase, without inducing any consumption overhead. Finally, discuss factors limiting currently achievable parallelism 8 phase-based output detection OOMMF simulations be increased 16 threshold-based detection-based gates.