By a News Reporter-Staff News Editor at Journal of Technology -- Investigators discuss new findings in Science and Technology. According to news reporting out of Saitama, Japan, by VerticalNews editors, research stated, "Biologically inspired computing devices and architectures are expected to overcome the limitations of conventional technologies in terms of solving computationally demanding problems, adapting to complex environments, reducing energy consumption, and so on. We previously demonstrated that a primitive single-celled amoeba (a plasmodial slime mold), which exhibits complex spatiotemporal oscillatory dynamics and sophisticated computing capabilities, can be used to search for a solution to a very hard combinatorial optimization problem."
Our news journalists obtained a quote from the research from RIKEN Advanced Science Institute, "We successfully extracted the essential spatiotemporal dynamics by which the amoeba solves the problem. This amoeba-inspired computing paradigm can be implemented by various physical systems that exhibit suitable spatiotemporal dynamics resembling the amoeba's problem-solving process. In this Article, we demonstrate that photoexcitation transfer phenomena in certain quantum nanostructures mediated by optical near-field interactions generate the amoebalike spatiotemporal dynamics and can be used to solve the satisfiability problem (SAT), which is the problem of judging whether a given logical proposition (a Boolean formula) is self-consistent. SAT is related to diverse application problems in artificial intelligence, information security, and bioinformatics and is a crucially important nondeterministic polynomial time (NP)-complete problem, which is believed to become intractable for conventional digital computers when the problem size increases. We show that our amoeba-inspired computing paradigm dramatically outperforms a conventional stochastic search method."
According to the news editors, the research concluded: "These results indicate the potential for developing highly versatile nanoarchitectonic computers that realize powerful solution searching with low energy consumption."
For more information on this research see: Amoeba-inspired nanoarchitectonic computing: solving intractable computational problems using nanoscale photoexcitation transfer dynamics. Langmuir, 2013;29(24):7557-64. (American Chemical Society - www.acs.org; Langmuir - www.pubs.acs.org/journal/langd5)
Our news journalists report that additional information may be obtained by contacting M. Aono, Flucto-Order Functions Research Team, RIKEN-HYU Collaboration Research Center, RIKEN Advanced Science Institute, Wako, Saitama, Japan. Additional authors for this research include M. Naruse, S.J. Kim, M. Wakabayashi, H. Hori, M. Ohtsu and M. Hara.
Keywords for this news article include: Asia, Japan, Saitama, Science and Technology.
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