Associative memory by virtual oscillator network based on single spin-torque oscillator.

ABSTRACT: A coupled oscillator network may be able to perform an energy-efficient associative memory operation. However, its realization has been difficult because inhomogeneities unavoidably arise among the oscillators during fabrication and lead to an unreliable operation. This issue could be resolved if the oscillator network were able to be formed from a single oscillator. Here, we performed numerical simulations and theoretical analyses on an associative memory operation that uses a virtual oscillator network based on a spin-torque oscillator. The virtual network combines the concept of coupled oscillators with that of feedforward neural networks. Numerical experiments demonstrate successful associations of 60-pixel patterns with various memorized patterns. Moreover, the origin of the associati

SUBMITTER: Imai Y 

PROVIDER: S-EPMC10517175 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature