2024-03-28T12:40:50Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/814172022-11-17T02:08:08Zhdl_2115_20053hdl_2115_145Simple Reservoir Computing Capitalizing on the Nonlinear Response of Materials: Theory and Physical ImplementationsKan, ShaohuaNakajima, KoheiTakeshima, Yuki1000000312380Asai, Tetsuya1000000283721Kuwahara, Yuji1000050437373Akai-Kasaya, Megumiopen access©2021 American Physical Society540The potential of nonlinear dynamical systems serving as reservoirs has attracted much attention for the physical realization of reservoir computing (RC). Here, we propose a hardware system working as a reservoir with one simple form of nonlinearity that reflects the intrinsic characteristics of the materials. We show that insufficient dynamics in such physical systems can perform like complex dynamical systems with the assistance of external controls. Based on the idea of spatial multiplexing, this dynamical system is studied under two frameworks. The correlation between structural adjustments of the reservoir and system performance in processing various types of task is proposed. Our results are expected to enable the development of material-based devices for RC.American Physical Society (APS)2021-02-12engjournal articleVoRhttp://hdl.handle.net/2115/81417https://doi.org/10.1103/PhysRevApplied.15.0240302331-7019Physical review applied152024030https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/81417/1/PhysRevApplied.15.024030.pdfapplication/pdf4.19 MB2021-02-12