Reservoir computing with the frequency, phase, and amplitude of spin-torque nano-oscillators

  title={Reservoir computing with the frequency, phase, and amplitude of spin-torque nano-oscillators},
  author={Draza Markovic and Nathan Leroux and Mathieu Riou and Flavio Abreu Araujo and Jacob Torrejon and D. Querlioz and Akio Fukushima and Shutaro Yuasa and Juan Trastoy and Paolo Bortolotti and Julie Grollier},
  journal={Applied Physics Letters},
Spin-torque nano-oscillators can emulate neurons at the nanoscale. Recent works show that the non-linearity of their oscillation amplitude can be leveraged to achieve waveform classification for an input signal encoded in the amplitude of the input voltage. Here we show that the frequency and the phase of the oscillator can also be used to recognize waveforms. For this purpose, we phase-lock the oscillator to the input waveform, which carries information in its modulated frequency. In this way… 

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