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Growth of Sobolev norms for abstract linear Schrödinger equations
Journal of the European Mathematical Society ( IF 2.5 ) Pub Date : 2020-10-29 , DOI: 10.4171/jems/1017
Dario Bambusi 1 , Benoît Grébert 2 , Alberto Maspero 3 , Didier Robert 2
Affiliation  

We prove an abstract theorem giving a $\langle t\rangle^\epsilon$ bound ($\forall \epsilon>0$) on the growth of the Sobolev norms in linear Schr\"odinger equations of the form $i \dot \psi = H_0 \psi + V(t) \psi $ when the time $t \to \infty$. The abstract theorem is applied to several cases, including the cases where (i) $H_0$ is the Laplace operator on a Zoll manifold and $V(t)$ a pseudodifferential operator of order smaller then 2; (ii) $H_0$ is the (resonant or nonresonant) Harmonic oscillator in $R^d$ and $V(t)$ a pseudodifferential operator of order smaller then $H_0$ depending in a quasiperiodic way on time. The proof is obtained by first conjugating the system to some normal form in which the perturbation is a smoothing operator and then applying the results of \cite{MaRo}.

中文翻译:

抽象线性薛定谔方程的 Sobolev 范数的增长

我们证明了一个抽象定理,给出了 $i \dot \ 形式的线性 Schr\"odinger 方程中 Sobolev 范数增长的 $\langle t\rangle^\epsilon$ 界($\forall \epsilon>0$) psi = H_0 \psi + V(t) \psi $ 当时间 $t \to \infty$. 抽象定理适用于几种情况,包括 (i) $H_0$ 是 Zoll 上的拉普拉斯算子的情况流形和 $V(t)$ 阶次小于 2 的伪微分算子;(ii) $H_0$ 是 $R^d$ 中的(谐振或非谐振)谐波振荡器,$V(t)$ 是阶次伪微分算子小于 $H_0$ 取决于时间上的准周期方式。通过首先将系统共轭到一些正常形式,其中扰动是一个平滑算子,然后应用 \cite{MaRo} 的结果来获得证明。
更新日期:2020-10-29
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