Discrete breathers and modulational instability in a discrete $$\varvec{\phi ^{4}}$$ϕ4 nonlinear lattice with next-nearest-neighbor couplings
Sign Up to like & getrecommendations! Published in 2017 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-017-3386-4
Abstract: The properties of discrete breathers and modulational instability in a discrete $$\phi ^{4}$$ϕ4 nonlinear lattice which includes the next-nearest-neighbor coupling interaction are investigated analytically. By using the method of multiple scales combined with a quasi-discreteness… read more here.
Keywords: discrete breathers; nearest neighbor; modulational instability; next nearest ... See more keywords
Modulational instability in addition to discrete breathers in 2D quantum ultracold atoms loaded in optical lattices
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DOI: 10.1007/s11071-019-05295-w
Abstract: The modulational instability associated with discrete breathers in 2D quantum ultracold atoms is studied by using the Glauber’s coherent state combined with a semi-discrete approximation and multiple-scale methods. The linear stability analysis exhibits an intriguing… read more here.
Keywords: quantum ultracold; discrete breathers; modulational instability; breathers quantum ... See more keywords
Two-dimensional discrete breathers in fcc metals
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DOI: 10.1016/j.commatsci.2020.109737
Abstract: Abstract The interest in discrete breathers (DB), i.e. a time-periodic and spatially localized vibrational mode in a defect free nonlinear lattice, is related to their ability to localize vibrational energy of the order of several… read more here.
Keywords: discrete breathers; fcc metals; dimensional discrete; two dimensional ... See more keywords
Compact discrete breathers on flat-band networks
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DOI: 10.1063/1.5041434
Abstract: Linear wave equations on flat band networks host compact localized eigenstates (CLS). Nonlinear wave equations on translationally invariant flat band networks can host compact discrete breathers - time periodic and spatially compact localized solutions. Such… read more here.
Keywords: discrete breathers; breathers flat; compact discrete; flat band ... See more keywords
Families of discrete breathers on a nonlinear kagome lattice.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review. E"
DOI: 10.1103/dh6t-hv5k
Abstract: The unique geometry of the two-dimensional tripartite Kagome lattice is responsible for shaping diverse families of spatially localized and time-periodic nonlinear modes, known as discrete breathers. We state conditions for the existence of breathers and… read more here.
Keywords: breathers nonlinear; kagome lattice; nonlinear kagome; discrete breathers ... See more keywords
MOLECULAR DYNAMICS SIMULATIONS OF DISCRETE BREATHERS IN THE NICKEL HYDRIDE
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DOI: 10.46813/2025-156-012
Abstract: Computational assessment of the discrete breathers, i.e. spatially localized and periodic in time nonlinear excitations in crystals, is performed in nickel hydride with an even stoichiometry by means of molecular dynamics simulations. The breathers consisting… read more here.
Keywords: breathers nickel; nickel hydride; dynamics simulations; molecular dynamics ... See more keywords