Journal ArticleDOI
Brownian Circuits: Fundamentals
TLDR
The results in this article suggest that in the design of future computers, signal fluctuations, rather than being an impediment to be avoided at any cost, may be an important ingredient to achieve efficient operation.Abstract:
Random fluctuations will be a major factor interfering with the operation of nanometer scale electronic devices. This article presents circuit architectures that can exploit such fluctuations, if signals have a particle-like (discrete, token-based) character. We define an abstract circuit primitive that, though lacking functionality when used with fluctuation-free signals, becomes universal when fluctuations are allowed. Key to the power of a signal’s fluctuations is the ability to explore the state space of a circuit. This ability is used to resolve deadlock situations, which could otherwise only be averted by increased design complexity. The results in this article suggest that in the design of future computers, signal fluctuations, rather than being an impediment to be avoided at any cost, may be an important ingredient to achieve efficient operation.read more
Citations
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Journal ArticleDOI
Brownian motion of skyrmion bubbles and its control by voltage applications
Takayuki Nozaki,Yuma Jibiki,Minori Goto,Eiiti Tamura,Tomohiro Nozaki,Hitoshi Kubota,Akio Fukushima,Shinji Yuasa,Yoshishige Suzuki,Yoshishige Suzuki +9 more
TL;DR: In this article, the thermally activated random walk of skyrmion bubbles for logical operations was employed for information carriers in spintronic devices, with the aim of employing token-based Brownian computing.
Journal ArticleDOI
Skyrmion Brownian circuit implemented in continuous ferromagnetic thin film
Yuma Jibiki,Minori Goto,Eiiti Tamura,Jaehun Cho,Soma Miki,Ryo Ishikawa,Hikaru Nomura,Titiksha Srivastava,Willy Lim,Stéphane Auffret,Claire Baraduc,Hélène Béa,Yoshishige Suzuki +12 more
TL;DR: In this paper, a skyrmion Brownian circuit was implemented in a continuous ferromagnetic film with patterned SiO2 capping to stabilize the SKYMION formation.
Journal ArticleDOI
The End of Moore’s Law: Opportunities for Natural Computing?
TL;DR: This paper discusses two directions that are currently attracting much attention as future computation paradigms: the merging of logic and memory, and brain-inspired computing.
Journal ArticleDOI
Anisotropic Skyrmion Diffusion Controlled by Magnetic-Field-Induced Symmetry Breaking
Nico Kerber,Markus Weißenhofer,Klaus Raab,Kai Litzius,Kai Litzius,Jakub Zázvorka,Jakub Zázvorka,Ulrich Nowak,Mathias Kläui +8 more
TL;DR: In this article, it was shown that by applying a magnetic in-plane field, and therefore, breaking the symmetry of the system, skyrmion diffusion becomes anisotropic, with faster diffusion parallel to the field axis and slower diffusion perpendicular to it.
Journal ArticleDOI
Fluctuation-driven computing on number-conserving cellular automata
TL;DR: The computability of NCCAs in which the pairwise number flows are performed at fully asynchronous timings is explored, and the Brownian-like flow of the numbers allows for efficient embedding of logic circuits into the novel asynchronous NCCA.
References
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Journal ArticleDOI
Brownian motors: noisy transport far from equilibrium
TL;DR: In this paper, the main emphasis is put on directed transport in so-called Brownian motors (ratchets), i.e. a dissipative dynamics in the presence of thermal noise and some prototypical perturbation that drives the system out of equilibrium without introducing a priori an obvious bias into one or the other direction of motion.