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pro vyhledávání: '"moving breathers"'
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Autor:
Bajārs, Jānis, Archilla, Juan F. R.
Publikováno v:
Physica D 441 (2022) 133497
We study nonlinear excitations propagating in a hexagonal layer which is a model for the cation layer of silicates. We consider their properties in the frequency-momentum or $\omega-k$ representation, extending the theory on pterobreathers in their m
Externí odkaz:
http://arxiv.org/abs/2201.03207
Discrete time quantum walks are unitary maps defined on the Hilbert space of coupled two-level systems. We study the dynamics of excitations in a nonlinear discrete time quantum walk, whose fine-tuned linear counterpart has a flat band structure. The
Externí odkaz:
http://arxiv.org/abs/1809.07981
Autor:
Shokirov, F. Sh.
The formation and evolution of stationary and moving breather solutions in (2+1)-dimensional O(3) nonlinear $\sigma$-model are investigated. The analytical form of oscillating solutions for (2+1)-dimensional sine-Gordon equation, which evolve to peri
Externí odkaz:
http://arxiv.org/abs/1605.01000
Publikováno v:
Proceedings: Mathematical, Physical and Engineering Sciences, 2015 Aug 01. 471(2180), 1-12.
Externí odkaz:
http://www.jstor.org/stable/24509439
Publikováno v:
Phys. Lett. A, 299 (2002) 221
We study the properties of moving breathers in a bent DNA-related model with short range interaction, due to the stacking of the base pairs, and long range interaction, due to the finite dipole moment of the bonds within each base pair. We show that
Externí odkaz:
http://arxiv.org/abs/nlin/0202007
Publikováno v:
Mod. Phys. Lett. B. 18(25):1319-1326, 2004
Recent papers have considered moving breathers (MBs) in DNA models including long range interaction due to the dipole moments of the hydrogen bonds. We have recalculated the value of the charge transfer when hydrogen bonds stretch using quantum chemi
Externí odkaz:
http://arxiv.org/abs/nlin/0404029
Publikováno v:
Localization and Energy Transfer in Nonlinear Systems, edited by L V\'azquez, MP Zorzano, RS Mackay (World Scientific, Singapore, 2003) pp. 256-259
We analyze the influence of an impurity in the evolution of moving discrete breathers in a Klein--Gordon chain with non-weak nonlinearity. Three different behaviours can be observed when moving breathers interact with the impurity: they pass through
Externí odkaz:
http://arxiv.org/abs/nlin/0306031
Autor:
Russell, F. M., Eilbeck, J. C.
Publikováno v:
Europhysics Letters, v. 78, 10004 (2007)
We report the ejection of atoms at a crystal surface caused by energetic breathers which have travelled more than 10^7 unit cells in atomic chain directions. The breathers were created by bombardment of a crystal face with heavy ions. This effect was
Externí odkaz:
http://arxiv.org/abs/cond-mat/0612066
Publikováno v:
J. Phys. A: Math. Gen. 35:8885-8902, 2002.
The existence, stability and movability of breathers in a model for alpha-helix proteins is studied. This model basically consists a chain of dipole moments parallel to it. The existence of localized linear modes brings about that the system has a ch
Externí odkaz:
http://arxiv.org/abs/nlin/0206050