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In this review, we extend the Boundary Control method\, -- \,an approach to inverse problems based on control theory for dynamical systems \, -- \,to inverse problems for discrete dynamical systems. We apply our results to classical moment…

Analysis of PDEs · Mathematics 2025-05-09 Alexander Mikhaylov , Victor Mikhaylov

We consider the inverse problem of the determining the potential in the dynamical Schr\"odinger equation on the interval by the measurement on the whole boundary. Provided that source is \emph{generic} using the Boundary Control method we…

Mathematical Physics · Physics 2011-11-11 S. A. Avdonin , V. S. Mikhaylov , K. Ramdani

We consider the dynamical system with boundary control for the vector Schr\"odinger equation on the interval with a non-self-adjoint matrix potential. For this system, we study the inverse problem of recovering the matrix potential from the…

Analysis of PDEs · Mathematics 2025-05-12 Sergei Avdonin , Alexander Mikhaylov , Victor Mikhaylov , Jeff Park

We provide bounds on the error between dynamics of an infinite dimensional bilinear Schr\"odinger equation and of its finite dimensional Galerkin approximations. Standard averaging methods are used on the finite dimensional approximations…

Optimization and Control · Mathematics 2015-03-19 Nabile Boussaïd , Marco Caponigro , Thomas Chambrion

In this paper, we study the controllability of a Schr\"odinger equation with mixed boundary conditions on disjoint subsets of the boundary: dynamic boundary condition of Wentzell type, and Dirichlet boundary condition. The main result of…

Optimization and Control · Mathematics 2023-01-09 Alberto Mercado , Roberto Morales

A control problem with terminal overdetermination is considered for the higher order nonlinear Schr\"odinger equation on a bounded interval. The boundary condition on the space derivative is chosen as the control. Results on global…

Analysis of PDEs · Mathematics 2023-12-07 Andrei V. Faminskii

We utilize the theory of de Branges spaces to show when certain Schr\"odinger operators with strongly singular potentials are uniquely determined by their associated spectral measure. The results are applied to obtain an inverse uniqueness…

Spectral Theory · Mathematics 2014-01-14 Jonathan Eckhardt

This paper studies the local exact controllability and the local stabilization of the semilinear Schr\"odinger equation posed on a product of $n$ intervals ($n\ge 1$). Both internal and boundary controls are considered, and the results are…

Analysis of PDEs · Mathematics 2010-02-08 Lionel Rosier , Bing-Yu Zhang

We consider the 1D nonlinear Schr\"odinger equation with bilinear control. In the case of Neumann boundary conditions, local exact controllability of this equation near the ground state has been proved by Beauchard and Laurent in…

Analysis of PDEs · Mathematics 2022-02-18 Alessandro Duca , Vahagn Nersesyan

The aim of this work is to study the controllability of the Schr\"odinger equation \begin{equation}\label{eq_abstract} i\partial_t u(t)=-\Delta u(t)~~~~~\text{ on }\Omega(t) \tag{$\ast$} \end{equation} with Dirichlet boundary conditions,…

Analysis of PDEs · Mathematics 2022-11-28 Alessandro Duca , Romain Joly , Dmitry Turaev

Using an extension of the H\"ormander product of distributions, we obtain an intrinsic formulation of one-dimensional Schr\"odinger operators with singular potentials. This formulation is entirely defined in terms of standard {\it Schwartz}…

Spectral Theory · Mathematics 2018-07-17 Nuno Costa Dias , Joao Nuno Prata , Cristina Jorge

This the text of a proceeding accepted for the 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS 2014). We present some results of an ongoing research on the controllability problem of an abstract bilinear…

Analysis of PDEs · Mathematics 2014-06-10 Nabile Boussaid , Marco Caponigro , Thomas Chambrion

We derive in a direct way the exact controllability of the 1D free Schr\"odinger equation with Dirichlet boundary control. We use the so-called flatness approach, which consists in parametrizing the solution and the control by the…

Optimization and Control · Mathematics 2018-04-23 Philippe Martin , Lionel Rosier , Pierre Rouchon

We present a sufficient condition for approximate controllability of the bilinear discrete-spectrum Schr\"odinger equation exploiting the use of several controls. The controllability result extends to simultaneous controllability,…

Optimization and Control · Mathematics 2013-02-19 Ugo Boscain , Marco Caponigro , Mario Sigalotti

We derive in a straightforward way the exact controllability of the 1-D Schrodinger equation with a Dirichlet boundary control. We use the so-called flatness approach, which consists in parameterizing the solution and the control by the…

Optimization and Control · Mathematics 2014-04-04 Philippe Martin , Lionel Rosier , Pierre Rouchon

This paper is addressed to studying the exact controllability for stochastic Schr\"{o}dinger equations by two controls. One is a boundary control in the drift term and the other is an internal control in the diffusion term. By means of the…

Optimization and Control · Mathematics 2013-04-29 Qi Lu

We investigate discretizations of the integrable discrete nonlinear Schr\"odinger dynamical system and related symplectic structures. We develop an effective scheme of invariant reducing the corresponding infinite system of ordinary…

Exactly Solvable and Integrable Systems · Physics 2014-03-28 Jan L. Cieśliński , Anatolij K. Prykarpatski

In this paper, we intend to present some already known results about the internal controllability of the linear and nonlinear Schr\"odinger equation. After presenting the basic properties of the equation, we give a self contained proof of…

Analysis of PDEs · Mathematics 2013-07-09 Camille Laurent

The aim of this paper is to provide a short introduction to modern issues in the control of infinite dimensional closed quantum systems, driven by the bilinear Schr\"odinger equation. The first part is a quick presentation of some of the…

Optimization and Control · Mathematics 2013-04-29 Ugo Boscain , Thomas Chambrion , Mario Sigalotti

The bilinear control problem of the Schr\"odinger equation $i\frac{\partial}{\partial t}\psi(t)$ $=(A+u(t) B)\psi(t)$, where $u(t)$ is the control function, is investigated through topological irreducibility of the set…

Mathematical Physics · Physics 2015-03-17 Kais Ammari , Zied Ammari
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