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Titolo:
DISCRETE LOCALIZED STATES AND LOCALIZATION DYNAMICS IN DISCRETE NONLINEAR SCHRODINGER-EQUATIONS
Autore:
CHRISTIANSEN PL; GAIDIDEI YB; MEZENTSEV VK; MUSHER SL; RASMUSSEN KO; RASMUSSEN JJ; RYZHENKOVA IV; TURITSYN SK;
Indirizzi:
TECH UNIV DENMARK,INST MATH MODELING,BLDG 303 DK-2800 LYNGBY DENMARK INST THEORET PHYS UA-252143 KIEV UKRAINE RUSSIAN ACAD SCI,INST AUTOMAT & ELECTROMETRY NOVOSIBIRSK 630090 RUSSIA RISO NATL LAB,OPT & FLUID DYNAM DEPT DK-4000 ROSKILDE DENMARK UNIV DUSSELDORF,INST THEORET PHYS 1 D-40225 DUSSELDORF GERMANY
Titolo Testata:
Physica scripta. T
, volume: T67, anno: 1996,
pagine: 160 - 166
SICI:
0281-1847(1996)T67:<160:DLSALD>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
FIBER ARRAYS; 2-DIMENSIONAL SOLITONS; ENERGY LOCALIZATION; DNA DENATURATION; MODES; LATTICE; BREATHERS; SYSTEMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
46
Recensione:
Indirizzi per estratti:
Citazione:
P.L. Christiansen et al., "DISCRETE LOCALIZED STATES AND LOCALIZATION DYNAMICS IN DISCRETE NONLINEAR SCHRODINGER-EQUATIONS", Physica scripta. T, T67, 1996, pp. 160-166

Abstract

Dynamics of two-dimensional discrete structures is studied in the framework of the generalized two-dimensional discrete nonlinear Schrodinger equation. The nonlinear coupling in the form of the Ablowitz-Ladik nonlinearity is taken into account. Stability properties of the stationary solutions are examined. The importance of the existence of stableimmobile solitons in the two-dimensional dynamics of the travelling pulses is demonstrated. The process of forming narrow states from initially broad standing or moving excitations through the quasi-collapse mechanism is analyzed. The typical scenario of the two-dimensional quasi-collapse of a moving intense pulse is the formation of pinned narrowspikes.

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Documento generato il 20/09/20 alle ore 23:10:18