Multisoliton Newton's cradles and supersolitons in regular and parity-time-symmetric nonlinear couplers

Pengfei Li, Lu Li, Boris A. Malomed

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12 Scopus citations

Abstract

We demonstrate the existence of stable collective excitation in the form of "supersolitons" propagating through chains of solitons with alternating signs (i.e., Newton's cradles built of solitons) in nonlinear optical couplers, including the parity-time-symmetric (PT-symmetric) version thereof. In the regular coupler, stable supersolitons are created in the cradles composed of both symmetric solitons and asymmetric ones with alternating polarities. Collisions between moving supersolitons are investigated too, by means of direct simulations in both the regular and PT-symmetric couplers.

Original languageEnglish
Article number062926
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume89
Issue number6
DOIs
StatePublished - 30 Jun 2014

Funding

FundersFunder number
National Natural Science Foundation of China61078079

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