Bright breathers in nonlinear left-handed metamaterial lattices
المؤلف | Koukouloyannis V. |
المؤلف | Kevrekidis P.G. |
المؤلف | Veldes G.P. |
المؤلف | Frantzeskakis D.J. |
المؤلف | Dimarzio D. |
المؤلف | Lan X. |
المؤلف | Radisic V. |
تاريخ الإتاحة | 2020-02-05T08:53:39Z |
تاريخ النشر | 2018 |
اسم المنشور | Physica Scripta |
المصدر | Scopus |
الرقم المعياري الدولي للكتاب | 318949 |
الملخص | In the present work, we examine a prototypical model for the formation of bright breathers in nonlinear left-handed metamaterial lattices. Utilizing the paradigm of nonlinear transmission lines, we build a relevant lattice and develop a quasi-continuum multiscale approximation that enables us to appreciate both the underlying linear dispersion relation and the potential for bifurcation of nonlinear states. We focus here, more specifically, on bright discrete breathers which bifurcate from the lower edge of the linear dispersion relation at wavenumber k = p. Guided by the multiscale analysis, we calculate numerically both the stable inter-site centered and the unstable site-centered members of the relevant family. We quantify the associated stability via Floquet analysis and the Peierls-Nabarro barrier of the energy difference between these branches. Finally, we explore the dynamical implications of these findings towards the potential mobility or lack thereof (pinning) of such breather solutions. 2018 IOP Publishing Ltd. |
راعي المشروع | The authors, VK, PGK, GPV, and DJF, acknowledge that this work made possible by NPRP grant #[9-329-1-067] from Qatar National Research Fund (a member of Qatar Foundation). The findings achieved herein are solely the responsibility of the authors. We also thank Professor Yannan Shen for numerous useful discussions. VK and PGK are grateful for support from the ERC under FP7, Marie Curie Actions, People, International Research Staff Exchange Scheme (IRSES-606096). |
اللغة | en |
الناشر | Institute of Physics Publishing |
الموضوع | discrete breathers left-handed lattice metamaterial lattice stability and mobility |
النوع | Article |
الصفحات | - |
رقم العدد | 2 |
رقم المجلد | 93 |
الملفات في هذه التسجيلة
الملفات | الحجم | الصيغة | العرض |
---|---|---|---|
لا توجد ملفات لها صلة بهذه التسجيلة. |
هذه التسجيلة تظهر في المجموعات التالية
-
الرياضيات والإحصاء والفيزياء [726 items ]