期刊
PHYSICAL REVIEW E
卷 89, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.89.062926
关键词
-
资金
- National Natural Science Foundation of China [61078079]
- Shanxi Scholarship Council of China [2011-010]
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.
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