Breather stripes and radial breathers of the two-dimensional sine-Gordon equation
Breather stripes and radial breathers of the two-dimensional sine-Gordon equation
复制标题
二维正弦戈登方程的通气条纹和径向通气
DOI:
10.1016/j.cnsns.2020.105596
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发表时间:
2021
影响因子:
3.9
通讯作者:
Malomed, B.A.
中科院分区:
文献类型:
--
作者:
Kevrekidis, P.G.;Carretero-González, R.;Cuevas-Maraver, J.;Frantzeskakis, D.J.;Caputo, J.-G.;Malomed, B.A.
We revisit the problem of transverse instability of a 2D breather stripe of the sine-Gordon (sG) equation. A numerically computed Floquet spectrum of the stripe is compared to analytical predictions developed by means of multiple-scale perturbation theory showing good agreement in the long-wavelength limit. By means of direct simulations, it is found that the instability leads to a breakup of the quasi-1D breather in a chain of interacting 2D radial breathers that appear to be fairly robust in the dynamics. The stability and dynamics of radial breathers in a finite domain are studied in detail by means of numerical methods. Different families of such solutions are identified. They develop small-amplitude spatially oscillating tails (“nanoptera”) through a resonance of higher-order breather’s harmonics with linear modes (“phonons”) belonging to the continuous spectrum. These results demonstrate the ability of the 2D sG model within our finite domain computations to localize energy in long-lived, self-trapped breathing excitations.
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DOI:
10.1016/s0167-2789(99)00131-1
发表时间:
1999
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
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通讯作者:
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影响因子:
2.6
作者:
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通讯作者:
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DOI:
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发表时间:
1982
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
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通讯作者:
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DOI:
10.1103/physreve.88.022915
发表时间:
2013
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
J. Caputo;M. Soerensen
通讯作者:
M. Soerensen
影响因子:
2.4
作者:
P. Kevrekidis;I. Danaila;J. Caputo;R. Carretero
通讯作者:
R. Carretero