Presentation 2015-08-07
Randomness and Complexity in "Nano-chaos"
Song-Ju Kim, Makoto Naruse, Masashi Aono, Hirokazu Hori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Previously, we performed numerical simulations to explore how optical energy (exciton) transfers in a network of quantum dots via optical near-field interactions and discovered a new phenomenon that we call “nano-chaos”, where the existing probability of energy oscillates in a chaotic manner when introducing delayed feedback in the energy transfer dynamics. In this study, we evaluate numerically the randomness and complexity of nano-chaos. We show that the randomness enhances with the increase in the sampling period, given as several pico seconds. This feature would be beneficial for physical random number generation. Formulating a new random walk model, we found that the nano-chaos-driven diffusion is non-stationary and achieves long-distance flights that cannot be done by traditional models. These results suggest that nano-chaos may be useful for new application purposes such as non-stationary search and efficient information transmission.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Random Number Generator / Nano-Chaos / Nanophotonics / Quantum Dot
Paper # CCS2015-41
Date of Issue 2015-07-30 (CCS)

Conference Information
Committee CCS
Conference Date 2015/8/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Dai-ichi Takimotokan (Noboribetsu, Hokkaido)
Topics (in Japanese) (See Japanese page)
Topics (in English) Network Science, etc.
Chair Hiroo Sekiya(Chiba Univ.)
Vice Chair Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.)
Secretary Yasuhiro Tsubo(Kagawa National College of Tech.) / Naoki Wakamiya(Kyoto Sangyo Univ.)
Assistant Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.)

Paper Information
Registration To Technical Committee on Complex Communication Sciences
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Randomness and Complexity in "Nano-chaos"
Sub Title (in English)
Keyword(1) Random Number Generator
Keyword(2) Nano-Chaos
Keyword(3) Nanophotonics
Keyword(4) Quantum Dot
1st Author's Name Song-Ju Kim
1st Author's Affiliation National Institute for Materials Science(NIMS)
2nd Author's Name Makoto Naruse
2nd Author's Affiliation National Institute of Information and Communications Technology(NICT)
3rd Author's Name Masashi Aono
3rd Author's Affiliation Tokyo Institute of Technology(TITECH)
4th Author's Name Hirokazu Hori
4th Author's Affiliation University of Yamanashi(U. Yamanashi)
Date 2015-08-07
Paper # CCS2015-41
Volume (vol) vol.115
Number (no) CCS-178
Page pp.pp.67-72(CCS),
#Pages 6
Date of Issue 2015-07-30 (CCS)