Evolution of a designless nanoparticle network into reconfigurable Boolean logic

Saurabh Bose, Celestine Preetham Lawrence, Zhihua Liu, K.S. Makarenko, Rudolf M.J. van Damme, Haitze J. Broersma, Wilfred Gerard van der Wiel

  • 25 Citations

Abstract

Natural computers exploit the emergent properties and massive parallelism of interconnected networks of locally active components. Evolution has resulted in systems that compute quickly and that use energy efficiently, utilizing whatever physical properties are exploitable. Man-made computers, on the other hand, are based on circuits of functional units that follow given design rules. Hence, potentially exploitable physical processes, such as capacitive crosstalk, to solve a problem are left out. Until now, designless nanoscale networks of inanimate matter that exhibit robust computational functionality had not been realized. Here we artificially evolve the electrical properties of a disordered nanomaterials system (by optimizing the values of control voltages using a genetic algorithm) to perform computational tasks reconfigurably. We exploit the rich behaviour that emerges from interconnected metal nanoparticles, which act as strongly nonlinear single-electron transistors, and find that this nanoscale architecture can be configured in situ into any Boolean logic gate. This universal, reconfigurable gate would require about ten transistors in a conventional circuit. Our system meets the criteria for the physical realization of (cellular) neural networks: universality (arbitrary Boolean functions), compactness, robustness and evolvability, which implies scalability to perform more advanced tasks. Our evolutionary approach works around device-to-device variations and the accompanying uncertainties in performance. Moreover, it bears a great potential for more energy-efficient computation, and for solving problems that are very hard to tackle in conventional architectures.
Original languageUndefined
Pages (from-to)1048-1052
Number of pages5
JournalNature nanotechnology
Volume10
Issue number12
DOIs
StatePublished - Dec 2015

Fingerprint

Single electron transistors
Cellular neural networks
Boolean functions
Logic gates
Metal nanoparticles
Crosstalk
Nanostructured materials
Voltage control
Scalability
Transistors
Electric properties
Physical properties
Genetic algorithms

Keywords

  • CR-B.4.2
  • EWI-26637
  • Organic–inorganic nanostructures
  • CR-I.1.m
  • IR-98923
  • Nanoparticles
  • Unconventional computing
  • Electronic devices
  • METIS-315129
  • Evolution in materio

Cite this

Bose, Saurabh; Lawrence, Celestine Preetham; Liu, Zhihua; Makarenko, K.S.; van Damme, Rudolf M.J.; Broersma, Haitze J.; van der Wiel, Wilfred Gerard / Evolution of a designless nanoparticle network into reconfigurable Boolean logic.

In: Nature nanotechnology, Vol. 10, No. 12, 12.2015, p. 1048-1052.

Research output: Scientific - peer-reviewArticle

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Evolution of a designless nanoparticle network into reconfigurable Boolean logic. / Bose, Saurabh; Lawrence, Celestine Preetham; Liu, Zhihua; Makarenko, K.S.; van Damme, Rudolf M.J.; Broersma, Haitze J.; van der Wiel, Wilfred Gerard.

In: Nature nanotechnology, Vol. 10, No. 12, 12.2015, p. 1048-1052.

Research output: Scientific - peer-reviewArticle

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