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- W2950734236 abstract "We study interaction of a soliton in a parity-time (PT) symmetric coupler which has local perturbation of the coupling constant. Such a defect does not change the PT-symmetry of the system, but locally can achieve the exceptional point. We found that the symmetric solitons after interaction with the defect either transform into breathers or blow up. The dynamics of anti-symmetric solitons is more complex, showing domains of successive broadening of the beam and of the beam splitting in two outwards propagating solitons, in addition to the single breather generation and blow up. All the effects are preserved when the coupling strength in the center of the defect deviates from the exceptional point. If the coupling is strong enough the only observable outcome of the soliton-defect interaction is the generation of the breather." @default.
- W2950734236 created "2019-06-27" @default.
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- W2950734236 date "2014-05-08" @default.
- W2950734236 modified "2023-09-27" @default.
- W2950734236 title "PT-symmetric coupler with a coupling defect: soliton interaction with exceptional point" @default.
- W2950734236 hasPublicationYear "2014" @default.
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