Handwritten Digit Recognition by Spin Waves in a Skyrmion Reservoir
arXiv:2309.06815 · doi:10.1038/s41598-023-46677-w
Abstract
By performing numerical simulations for the handwritten digit recognition task, we demonstrate that a magnetic skyrmion lattice confined in a thin-plate magnet possesses high capability of reservoir computing. We obtain a high recognition rate of more than 88%, higher by about 10% than a baseline taken as the echo state network model. We find that this excellent performance arises from enhanced nonlinearity in the transformation which maps the input data onto an information space with higher dimensions, carried by interferences of spin waves in the skyrmion lattice. Because the skyrmions require only application of static magnetic field instead of nanofabrication for their creation in contrast to other spintronics reservoirs, our result consolidates the high potential of skyrmions for application to reservoir computing devices.
References in corpus (22)
- Skyrmion Lattice in a Chiral Magnet
- Recent Advances in Physical Reservoir Computing: A Review
- Optoelectronic Reservoir Computing
- All-optical Reservoir Computing
- Physical reservoir computing -- An introductory perspective
- Spin-Wave Modes and Their Intense Excitation Effects in Skyrmion Crystals
- A magnetic skyrmion as a non-linear resistive element - a potential building block for reservoir computing
- Reservoir Computing with Random Skyrmion Textures
- Potential implementation of Reservoir Computing models based on magnetic skyrmions
- Physical reservoir computing built by spintronic devices for temporal information processing
- Magnetic Skyrmions for Unconventional Computing
- Macromagnetic simulation for reservoir computing utilizing spin dynamics in magnetic tunnel junctions
- Brownian reservoir computing realized using geometrically confined skyrmions
- Spin waves in a skyrmion crystal
- Reservoir computing with the frequency, phase and amplitude of spin-torque nano-oscillators
- Pattern recognition with neuromorphic computing using magnetic-field induced dynamics of skyrmions
- Reservoir Computing on Spin-Torque Oscillator Array
- Dynamical magnetoelectric phenomena of multiferroic skyrmions
- Reservoir Computing with Spin Waves in Skyrmion Crystal
- Perspective on unconventional computing using magnetic skyrmions
- Audio Classification with Skyrmion Reservoirs
- Step-like dependence of memory function on pulse width in spintronics reservoir computing