Partially concentrating standing waves for weakly coupled Schrödinger systems

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Hauptverfasser: Pellacci, Benedetta, Pistoia, Angela, Vaira, Giusi, Verzini, Gianmaria
Format: Preprint
Veröffentlicht: 2023
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author Pellacci, Benedetta
Pistoia, Angela
Vaira, Giusi
Verzini, Gianmaria
author_facet Pellacci, Benedetta
Pistoia, Angela
Vaira, Giusi
Verzini, Gianmaria
contents We study the existence of standing waves for the following weakly coupled system of two Schrödinger equations in $\mathbb{R}^N$, $N=2,3$, \[ \begin{cases} i \hslash \partial_{t}ψ_{1}=-\frac{\hslash^2}{2m_{1}}Δψ_{1}+ {V_1}(x)ψ_{1}-μ_{1}|ψ_{1}|^{2}ψ_{1}-β|ψ_{2}|^{2}ψ_{1} & \\ i \hslash \partial_{t}ψ_{2}=-\frac{\hslash^2}{2m_{2}}Δψ_{2}+ {V_2}(x)ψ_{2}-μ_{2}|ψ_{2}|^{2}ψ_{2}-β|ψ_{1}|^{2}ψ_{2},& \end{cases} \] where $V_1$ and $V_2$ are radial potentials bounded from below. We address the case $m_{1}\sim \hslash^2\to0$, $m_2$ constant, and prove the existence of a standing wave solution with both nontrivial components satisfying a prescribed asymptotic profile. In particular, the second component of such solution exhibits a concentrating behavior, while the first one keeps a quantum nature.
format Preprint
id arxiv_https___arxiv_org_abs_2311_11648
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Partially concentrating standing waves for weakly coupled Schrödinger systems
Pellacci, Benedetta
Pistoia, Angela
Vaira, Giusi
Verzini, Gianmaria
Analysis of PDEs
We study the existence of standing waves for the following weakly coupled system of two Schrödinger equations in $\mathbb{R}^N$, $N=2,3$, \[ \begin{cases} i \hslash \partial_{t}ψ_{1}=-\frac{\hslash^2}{2m_{1}}Δψ_{1}+ {V_1}(x)ψ_{1}-μ_{1}|ψ_{1}|^{2}ψ_{1}-β|ψ_{2}|^{2}ψ_{1} & \\ i \hslash \partial_{t}ψ_{2}=-\frac{\hslash^2}{2m_{2}}Δψ_{2}+ {V_2}(x)ψ_{2}-μ_{2}|ψ_{2}|^{2}ψ_{2}-β|ψ_{1}|^{2}ψ_{2},& \end{cases} \] where $V_1$ and $V_2$ are radial potentials bounded from below. We address the case $m_{1}\sim \hslash^2\to0$, $m_2$ constant, and prove the existence of a standing wave solution with both nontrivial components satisfying a prescribed asymptotic profile. In particular, the second component of such solution exhibits a concentrating behavior, while the first one keeps a quantum nature.
title Partially concentrating standing waves for weakly coupled Schrödinger systems
topic Analysis of PDEs
url https://arxiv.org/abs/2311.11648