Small Mass Nanopteron Traveling Waves in Mass-in-Mass Lattices with Cubic FPUT Potential

Small Mass Nanopteron Traveling Waves in Mass-in-Mass Lattices with Cubic FPUT Potential
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具有立方 FPUT 势的质中质量晶格中的小质量纳米翼行波

DOI:
10.1007/s10884-020-09865-0
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发表时间:
2019
影响因子:
1.3
通讯作者:
Timothy E. Faver
Timothy E. Faver
中科院分区:
数学3区
文献类型:
--
作者:
Timothy E. Faver

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质量中的质量(MiM)晶格由相同的珠子组成的无限链组成,这些珠子都与它们最近的邻居非线性耦合,并与不同的谐振器粒子线性耦合;它作为颗粒晶体和超材料中波传播的原型模型。我们研究行波在MiM晶格的珠相互作用是由立方费米-Pasta-Ulam-Tsingou势,其谐振器的质量是小的珠质量相比。排除可数数量的“反共振”谐振器质量积累在0,我们证明了存在的纳米鳍行波在这个小的质量限制。这些波的轮廓由指数局部化核心和小振幅周期性振荡的叠加组成,小振幅周期性振荡本身是晶格的行波轮廓。我们的论点使用功能分析技术最初由比尔开发的毛细重力水波问题,最近在一些相关的纳米结构在双原子费米-帕斯塔-乌拉姆-Tsingou晶格。
The mass-in-mass (MiM) lattice consists of an infinite chain of identical beads that are both nonlinearly coupled to their nearest neighbors and linearly coupled to a distinct resonator particle; it serves as a prototypical model of wave propagation in granular crystals and metamaterials. We study traveling waves in an MiM lattice whose bead interaction is governed by the cubic Fermi–Pasta–Ulam–Tsingou potential and whose resonator mass is small compared to the bead mass. Excluding a countable number of “antiresonance” resonator masses accumulating at 0, we prove the existence of nanopteron traveling waves in this small mass limit. The profiles of these waves consist of the superposition of an exponentially localized core and a small amplitude periodic oscillation that itself is a traveling wave profile for the lattice. Our arguments use functional analytic techniques originally developed by Beale for a capillary–gravity water wave problem and recently employed in a number of related nanopteron constructions in diatomic Fermi–Pasta–Ulam–Tsingou lattices.
质中晶格中的孤立波
DOI: 10.1007/s00033-020-01384-8
发表时间: 2020
期刊: Zeitschrift für angewandte Mathematik und Physik
影响因子: --
作者:
Faver, Timothy E.;Goodman, Roy H.;Wright, J. Douglas
通讯作者: Wright, J. Douglas
DOI: 10.1088/0951-7715/28/8/2767
发表时间: 2015-02
期刊: Nonlinearity
影响因子: 1.7
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通讯作者: M. Herrmann;Karsten Matthies
DOI: 10.1007/978-3-319-64173-7_1
发表时间: 2017
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