Results 101 to 110 of about 40,982 (217)

Topological Solitons

, 2004
Topological solitons occur in many nonlinear classical field theories. They are stable, particle-like objects, with finite mass and a smooth structure. Examples are monopoles and Skyrmions, Ginzburg-Landau vortices and sigma-model lumps, and Yang-Mills instantons.
Manton, N. S., Sutcliffe, P. M.
openaire   +3 more sources

Generation of a Train of Ultrashort Pulses Near-Infrared Regime in a Tapered Photonic Crystal Fiber Using Raised-Cosine Pulses

IEEE Photonics Journal, 2012
We consider an optical pulse propagating in a tapered photonic crystal fiber (PCF) wherein dispersion as well as nonlinearity varies along the propagation direction.
Samuel Olupitan, K. Senthilnathan, P. Ramesh Babu, Sumeet S. Aphale, K. Nakkeeran   +4 more
doaj   +1 more source

Soliton on Thin Vortex Filament

, 1990
"Showing that one of the equations found by Wadati Konno and Ichikawa is equivalent to the equation of motion of a thin vortex filament, we investigate solitons on the vortex filament. N vortex soliton solution is given in terms of the inverse scattering
Ichikawa, Yoshi H.", "Konno, K., Mituhashi, M.   +2 more
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Non-topological solitons and quasi-solitons

Reports on Progress in Physics
Abstract Solitons in relativistic field theories are not necessarily topologically charged. In particular, non-topological solitons—known as Q-balls—arise naturally in nonlinear field theories endowed with attractive interactions and internal symmetries.
openaire   +3 more sources

The nature of quantum parallel processing and its implications for coding in brain neural networks: a novel computational mechanism

Frontiers in Network Physiology
Conventionally it is assumed that the nerve impulse is an electrical process based upon the observation that electrical stimuli produce an action potential as defined by Hodgkin Huxley (1952) (HH).
Andrew S. Johnson, William Winlow
doaj   +1 more source

Ion-Acoustic Solitary Waves in An Unmagnetised Dusty Plasma Having Inertialess Electrons with Quantum Effects

East European Journal of Physics
This investigation illustrates the presence and characteristics of compressive and rarefactive solitons in an unmagnetized plasma that includes positive ions, negatively charged dust, inertialess electrons with quantum effect and nonextensively ...
Satyendra Nath Barman, Kingkar Talukdar
doaj   +1 more source

Editorial: Ultrafast Photonics of Low-Dimensional Materials

Frontiers in Physics, 2021
Xiaohui Li, Zhuoying Song, Han Zhang, Yufeng Song, Krassimir Panajotov   +4 more
doaj   +1 more source

Exact Solutions for the Sharma–Tasso–Olver Equation via the Sardar Subequation Method with a Comparison between Atangana Space–Time Beta-Derivatives and Classical Derivatives

Mathematics
The Sharma–Tasso–Olver (STO) equation is a nonlinear, double-dispersive, partial differential equation that is physically important because it provides insights into the behavior of nonlinear waves and solitons in various physical areas, including fluid ...
Chanidaporn Pleumpreedaporn, Elvin J. Moore, Sekson Sirisubtawee, Nattawut Khansai, Songkran Pleumpreedaporn   +4 more
doaj   +1 more source

Knotted Solitons

, 2016
The dynamical model on 3+1 dimensional spacetime admitting soliton solutions is discussed. The proposal soliton is localized in the vicinity of a closed contour, which could be linked and/or knotted. The topological charge is Hopf invariant. Some applications in realistic physical systems are indicated.
openaire   +2 more sources

Experiments and Applications of Soliton Physics

, 1990
"Solitons are everywhere in the nature. The present lecture surveys various soliton phenomena, after giving the mathematical foundation to define solitons.
"Ichikawa, Yoshi H."
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