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Paper Abstract and Keywords
Presentation 2018-04-26 11:10
A Numerical Study on Wave Packets and Moving ILMs Created by Exciting an Edge of One-Dimensional FPU Chain
Soichiro Tanaka, Masayuki Kimura, Shinji Doi (Kyoto Univ.) NLP2018-3
Abstract (in Japanese) (See Japanese page) 
(in English) Intrinsic localized modes (ILMs) are known as energy localized vibrations in nonlinear coupled oscillators. In the Fermi-Pasta-Ulam (FPU) chain, moving ILMs can be excited by driving an edge of the chain. However, amplitude and frequency of the excitation for generating a train of moving ILMs without exciting non-localized waves have not been clarified yet. In the previous report, we have introduced variance of peak values and peak intervals of energy distribution at a certain time for identifying a parameter region in which moving ILMs are only generated. As a result, the parameter region can be clearly distinguished from the other regions by the smallness of the variance. However, the parameter region lies in phonon band. In this report, a moving localized vibration generated by in-band frequency excitation is compared to one generated by out-band frequency excitation, namely, moving ILM.
Keyword (in Japanese) (See Japanese page) 
(in English) Nonlinear lattice / Intrinsic Localized Mode(Discrete Breather) / Energy Localization / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 15, NLP2018-3, pp. 9-13, April 2018.
Paper # NLP2018-3 
Date of Issue 2018-04-19 (NLP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee NLP  
Conference Date 2018-04-26 - 2018-04-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumaoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Discrete Dynamical Systems, Sequences, etc 
Paper Information
Registration To NLP 
Conference Code 2018-04-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Numerical Study on Wave Packets and Moving ILMs Created by Exciting an Edge of One-Dimensional FPU Chain 
Sub Title (in English)  
Keyword(1) Nonlinear lattice  
Keyword(2) Intrinsic Localized Mode(Discrete Breather)  
Keyword(3) Energy Localization  
1st Author's Name Soichiro Tanaka  
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.)
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Date Time 2018-04-26 11:10:00 
Presentation Time 25 
Registration for NLP 
Paper # IEICE-NLP2018-3 
Volume (vol) IEICE-118 
Number (no) no.15 
Page pp.9-13 
#Pages IEICE-5 
Date of Issue IEICE-NLP-2018-04-19 

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