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原文連結
論文資訊
- 類型：已發表論文
- 日期：2020-08-25
摘要
We present trapped solitary wave solutions of a coupled 非線性 Schrödinger (NLS) system in 1 +1 dimensions in the presence of an external, supersymmetric and complex PT -symmetric potential. The Schrödinger system this work focuses on possesses exact solutions whose existence, stability, and spatiotemporal dynamics are investigated by means of analytical and numerical methods. Two different variational approximations are considered where the stability and dynamics of the solitary waves are explored in terms of eight and twelve time-dependent collective coordinates (CCs). We find regions of stability for specific potential choices as well as analytic expressions for the small oscillation frequencies in the CC approximation. Our findings are further supported by performing systematic numerical
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