Skyrmion Gas Manipulation for Probabilistic Computing

2017/01/31 by D. Pinna, Daniele Pinna, Flavio Abreu Araujo +13 · 194 citations
Computer Science · Physics and Astronomy · #Character (mathematics) #Logic gate #Magnetic properties of thin films #Motion (physics) #Probabilistic logic #Quantum Computing Algorithms and Architecture #Quantum many-body systems #Skyrmion #Stochastic computing #cond-mat.dis-nn #cond-mat.mes-hall #physics.comp-ph

paper · pdf · doi:10.1103/physrevapplied.9.064018

published in Physical Review Applied 9(6) (American Physical Society) · 41 pages, 20 figures

openalex created_date 2017/02/03 · arxiv created 2017/09/19 · openalex publication_date 2018/06/13 · arxiv updated 2018/06/20 · openalex updated_date 2026/08/05

Abstract

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.

Citations

• A quantitative description of membrane current and its application to conduction and excitation in nerve
• Dynamics of Domain Walls in Magnetic Nanostrips
• Universal current-velocity relation of skyrmion motion in chiral magnets
• A Review of the Integrate-and-fire Neuron Model: I. Homogeneous Synaptic Input
• Microscopic approach to current-driven domain wall dynamics
• Topological charge analysis of ultrafast single skyrmion creation
• Direct Observation of the Skyrmion Hall Effect
• Magnetic skyrmions: advances in physics and potential applications

Cited by

• The promise of spintronics for unconventional computing
• Skyrmionics—Computing and memory technologies based on topological excitations in magnets