Skyrmion Gas Manipulation for Probabilistic Computing

Stochastic computing (SC), a radical rethinking of computation, defines operations on streams of random bits; it trades precision for large advantages in speed. Implementation has been thwarted, though, by the lack of an efficient means to properly decorrelate bitstreams at each logic gate in an SC circuit. This study harnesses recent advances in manipulating magnetic skyrmions to propose a technique for telegraph-signal reshuffling that is tailor-made for SC applications. Leveraging the two-dimensional diffusive character of skyrmion motion shows how useful these exotic magnetic textures can be in tackling problems that require compact, scalable, energy-efficient device architectures.