Abstract
On the basis of the spectral analysis of the 4×4 matrix Lax pair, the initial value problem of the coherently-coupled nonlinear Schrödinger system is transformed into a 4×4 matrix Riemann-Hilbert problem. By using the nonlinear steepest decent method, the long-time asymptotics of the solution of the initial value problem for the coherently-coupled nonlinear Schrödinger system is obtained through deforming the Riemann-Hilbert problem into a solvable model one.
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Supported by the National Natural Science Foundation of China (Grant Nos. 11871440 and 11931017)
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Chen, M.M., Geng, X.G. & Wang, K.D. Spectral Analysis and Long-time Asymptotics for the Coherently-coupled Nonlinear Schrödinger System. Acta. Math. Sin.-English Ser. 38, 2090–2114 (2022). https://doi.org/10.1007/s10114-022-1109-3
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DOI: https://doi.org/10.1007/s10114-022-1109-3
Keywords
- Coherently-coupled nonlinear Schrödinger system
- nonlinear steepest descent method
- long-time asymptotics