| Presentation | 2021-01-21 A Numerical Study on Stability and Mobility of Rotating Intrinsic Localized Mode in Flexible FPU-KG Mixed Lattice Ikuma Yamaguchi, Masayuki Kimura, Shinji Doi, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Intrinsic Localized Mode (ILM) is known as a periodic solution where the lattice vibration is spatially localized in a nonlinear coupled oscillator. The existence of rotating ILMs (R-ILMs), in which rotational motion around the lattice axis is localized, has also been confirmed in a flexible nonlinear one-dimensional chain. In this paper, we numerically investigate the stability and mobility of R-ILMs on a nonlinear 1D-chain placed in 3D-space. First, the existence of two types of stationary R-ILMs with different symmetries was confirmed, and their stability and energy differences were investigated with respect to the angular frequency and the nonlinear coefficient of the on-site potential. Then, it was confirmed that moving R-ILMs can be generated near the parameter where the stability of the two types of stationary R-ILMs alternates, and the smaller the energy difference is, the longer distance the R-ILM can travel. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nonlinear lattice / Intrinsic localized mode / Rotating ILM / Moving ILM |
| Paper # | NLP2020-48 |
| Date of Issue | 2021-01-14 (NLP) |
| Conference Information | |
| Committee | NC / NLP |
|---|---|
| Conference Date | 2021/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | NC，NLP |
| Chair | Kazuyuki Samejima(Tamagawa Univ) / Kiyohisa Natsume(Kyushu Inst. of Tech.) |
| Vice Chair | Rieko Osu(Waseda Univ.) / Takuji Kosaka(Chukyo Univ.) |
| Secretary | Rieko Osu(NTT) / Takuji Kosaka(ATR) |
| Assistant | Ken Takiyama(TUAT) / Nobuhiko Wagatsuma(Toho Univ.) / Toshikaza Samura(Yamaguchi Univ.) / Hideyuki Kato(Oita Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on Nonlinear Problems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Numerical Study on Stability and Mobility of Rotating Intrinsic Localized Mode in Flexible FPU-KG Mixed Lattice |
| Sub Title (in English) | |
| Keyword(1) | Nonlinear lattice |
| Keyword(2) | Intrinsic localized mode |
| Keyword(3) | Rotating ILM |
| Keyword(4) | Moving ILM |
| 1st Author's Name | Ikuma Yamaguchi |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Masayuki Kimura |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 3rd Author's Name | Shinji Doi |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2021-01-21 |
| Paper # | NLP2020-48 |
| Volume (vol) | vol.120 |
| Number (no) | NLP-330 |
| Page | pp.pp.42-47(NLP), |
| #Pages | 6 |
| Date of Issue | 2021-01-14 (NLP) |