This proposal develops a comprehensive methodology for harnessing inertial effects in magnetic domain walls to create high-performance physical reservoirs. It integrates an extended Inertial Landau-Lifshitz-Gilbert (ILLG) framework with adaptive Ott-Grebogi-Yorke (OGY) chaos control and multi-domain wall array architectures. The approach aims to enable THz-scale reservoir computing through systematic optimization of driving parameters and rigorous experimental validation against conventional non-inertial baselines.
Key findings
Integration of second-order ILLG dynamics with adaptive OGY control enables stabilization of target periodic orbits while preserving essential computational complexity
Multi-domain wall array architecture significantly enhances computational capacity compared to single-DW reservoir implementations
Sub-THz frequency operation via spin inertia offers potential for unprecedented processing speed and energy efficiency in neuromorphic hardware
Comprehensive risk analysis identifies mitigation strategies for numerical stability and chaos controllability challenges
Limitations & open questions
Proposal stage lacks experimental validation of the integrated inertial chaos control scheme
Relies on idealized material parameters and numerical solvers that may face challenges at THz frequencies
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