Stationary wave packets in the Kerr nonlinear media with imaginary harmonic potential and linear gain
| Autor: | F. Kh. Abdullaev, R. M. Galimzyanov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Network packet Wave packet General Physics and Astronomy Harmonic potential 01 natural sciences Optical potential 010309 optics Standing wave Nonlinear system Gross–Pitaevskii equation Quantum electrodynamics 0103 physical sciences Variational analysis 010306 general physics Nonlinear Sciences::Pattern Formation and Solitons |
| Zdroj: | Physics Letters A. 382:1873-1880 |
| ISSN: | 0375-9601 |
| DOI: | 10.1016/j.physleta.2018.04.051 |
| Popis: | The existence of stationary wave packets in the nonlinear Kerr media with an imaginary harmonic potential and a linear gain is investigated. By employing a variational approach the existence of stable bright solitons is shown for the case of a defocusing nonlinearity. In focusing nonlinear media, the bright solitons have been shown to be unstable. The predictions of variational approach are confirmed by numerical simulations of the full modified NLS equation. The predicted stationary localized wave packets can be observed in a quasi-one-dimensional BEC with an imaginary optical potential and atoms feeding. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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