Refined L^2-decay estimate of solutions to a system of dissipative nonlinear Schroedinger equations

We study the Cauchy problem of a system of dissipative nonlinear Schr¨odinger equations. Our target is to obtain a time-decay estimate of the solutions in $L^2$ without size-restriction on the initial data. By imposing high regularity and rapid spatial decay on the initial data, we find that the $L^2$-norm of the solutions decays at the rate of $O((\log t)^{−2/5})$ as $t \to \infty$. It is a refined decay-estimate, compared to former works.

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Publication Details

Journal
Journal of Applied Science and Engineering A
Published
2024-12-01
DOI
https://doi.org/10.5564/jase-a.v5i1.3408
Primary Topic
Advanced Mathematical Physics Problems
Type
article
Field-Weighted Citation Impact
0.00

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article

Refined L^2-decay estimate of solutions to a system of dissipative nonlinear Schroedinger equations

Takuya Sato, Naoyasu Kita, Yuji Sagawa, Hayato Miyazaki
Journal of Applied Science and Engineering A
Advanced Mathematical Physics Problems
article

Refined L^2-decay estimate of solutions to a system of dissipative nonlinear Schroedinger equations

Takuya Sato, Naoyasu Kita, Yuji Sagawa, Hayato Miyazaki
article en

Abstract

We study the Cauchy problem of a system of dissipative nonlinear Schr¨odinger equations. Our target is to obtain a time-decay estimate of the solutions in $L^2$ without size-restriction on the initial data. By imposing high regularity and rapid spatial decay on the initial data, we find that the $L^2$-norm of the solutions decays at the rate of $O((\log t)^{−2/5})$ as $t \to \infty$. It is a refined decay-estimate, compared to former works.

Journal of Applied Science and Engineering AVol. 5(1)
Kagawa University (JP), Osaka Metropolitan University (JP), Tokyo Metropolitan University (JP), Kumamoto University (JP)
Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science
Openalex Percentile: Top 59%
Advanced Mathematical Physics Problems
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