1. Temporal Pattern Recognition with Delayed-Feedback Spin-Torque Nano-Oscillators
- Author
-
Shinji Yuasa, Paolo Bortolotti, Damien Querlioz, Vincent Cros, Mark D. Stiles, Hitoshi Kubota, B. Garitaine, Julie Grollier, Jacob Torrejon, Kay Yakushiji, Mathieu Riou, F. Abreu Araujo, Sumito Tsunegi, Akio Fukushima, Unité mixte de physique CNRS/Thales (UMPhy CNRS/THALES), Centre National de la Recherche Scientifique (CNRS)-THALES, National Institute of Advanced Industrial Science and Technology (AIST), Nagoya University, Institut d'électronique fondamentale (IEF), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Computer science ,FOS: Physical sciences ,General Physics and Astronomy ,Applied Physics (physics.app-ph) ,02 engineering and technology ,01 natural sciences ,0103 physical sciences ,Nano ,Hardware_INTEGRATEDCIRCUITS ,Torque ,Leverage (statistics) ,[NLIN]Nonlinear Sciences [physics] ,[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] ,010306 general physics ,[PHYS]Physics [physics] ,Data processing ,Hardware_MEMORYSTRUCTURES ,business.industry ,Pattern recognition ,Physics - Applied Physics ,021001 nanoscience & nanotechnology ,Neuromorphic engineering ,Artificial intelligence ,0210 nano-technology ,business ,Efficient energy use - Abstract
International audience; The recent demonstration of neuromorphic computing with spin-torque nano-oscillators has opened a path to energy efficient data processing. The success of this demonstration hinged on the intrinsic short-term memory of the oscillators. In this study, we extend the memory of the spin-torque nano-oscillators through time-delayed feedback. We leverage this extrinsic memory to increase the efficiency of solving pattern recognition tasks that require memory to discriminate different inputs. The large tunability of these non-linear oscillators allows us to control and optimize the delayed feedback memory using different operating conditions of applied current and magnetic field.
- Published
- 2019