arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math-ph/0110037math-phmath.MP
收藏

非线性薛定谔方程激发态的稳定方向

Stable Directions for Excited States of Nonlinear Schrödinger Equations

Tai-Peng Tsai, Horng-Tzer Yau

摘要:

我们考虑$\R^3$中的非线性薛定谔方程。假设线性哈密顿有两个束缚态。对于初始数据空间中的有限余维子集,我们构造了在非共振和共振情况下收敛于激发态的解。在共振情况下,激发态周围的线性化算符是对某些具有嵌入本征值的线性哈密顿量的非自伴扰动。虽然自伴微扰将嵌入的本征值转变为共振,但这类非自伴微扰将嵌入的本征值转变为两个本征值,其距离由费米黄金法则给予首阶的连续谱。

英文摘要:

We consider nonlinear Schrödinger equations in $\R^3$. Assume that the linear Hamiltonians have two bound states. For certain finite codimension subset in the space of initial data, we construct solutions converging to the excited states in both non-resonant and resonant cases. In the resonant case, the linearized operators around the excited states are non-self adjoint perturbations to some linear Hamiltonians with embedded eigenvalues. Although self-adjoint perturbation turns embedded eigenvalues into resonances, this class of non-self adjoint perturbations turn an embedded eigenvalue into two eigenvalues with the distance to the continuous spectrum given to the leading order by the Fermi golden rule.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑