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An approximate method is proposed for the recovery of a compactly supported spherically-symmetric potential from the set of fixed-energy phase-shifts known for all angular momenta. The method reduces the inverse scattering problem to a…

数学物理 · 物理学 2016-09-07 A. G. Ramm , W. Scheid

It is shown that the Newton-Sabatier procedure for inverting the fixed-energy phase shifts for a potential is not an inversion method but a parameter-fitting procedure. Theoretically there is no guarantee that this procedure is applicable…

数学物理 · 物理学 2009-10-31 R. Airapetyan , A. G. Ramm , A. Smirnova

The inverse scattering problem of the three-dimensional Schroedinger equation is considered at fixed scattering energy with spherically symmetric potentials. The phase shifts determine the potential therefore a constructive scheme for…

数学物理 · 物理学 2011-11-28 Tamas Palmai , Barnabas Apagyi

A novel numerical method for solving inverse scattering problem with fixed-energy data is proposed. The method contains a new important concept: the stability index of the inversion problem. This is a number, computed from the data, which…

数学物理 · 物理学 2007-05-23 S. Gutman , A. G. Ramm , W. Scheid

We consider the fixed angle inverse scattering problem and show that a compactly supported potential is uniquely determined by its scattering amplitude for two opposite fixed angles. We also show that almost symmetric or horizontally…

偏微分方程分析 · 数学 2019-05-13 Rakesh , Mikko Salo

Mathematically rigorous inversion method is developed to recover compactly supported potentials from the fixed-energy scattering data in three dimensions. Error estimates are given for the solution. An algorithm for inversion of noisy…

数学物理 · 物理学 2007-05-23 A. G. Ramm

This paper is concerned with the inverse problem to recover a compactly supported Schr{\"o}dinger potential given the differential scattering cross section, i.e. the modulus, but not the phase of the scattering amplitude. To compensate for…

偏微分方程分析 · 数学 2018-12-26 Alexey Agaltsov , Thorsten Hohage , Roman Novikov

Fixed energy inverse scattering theory has been used to define central and spin-orbit Schr\"odinger potentials for the scattering of 5 eV polarized electrons from Xe atoms. The results are typical for a range of such data; including…

原子物理 · 物理学 2009-11-06 A. Lovell , K. Amos

In this paper we consider the inverse scattering problem at a fixed energy for the Schr\"odinger equation with a long-range potential in $\ere^d, d\geq 3$. We prove that the long-range part can be uniquely reconstructed from the leading…

数学物理 · 物理学 2020-05-22 Ricardo Weder , Dimitri Yafaev

We transform an inverse scattering problem to be an interior transmission problem. We find an inverse uniqueness on the scatterer with a knowledge of a fixed interior transmission eigenvalue. By examining the solution in a series of…

数学物理 · 物理学 2015-08-06 Lung-Hui Chen

We study the inverse scattering problem for electric potentials and magnetic fields in $\ere^d, d\geq 3$, that are asymptotic sums of homogeneous terms at infinity. The main result is that all these terms can be uniquely reconstructed from…

数学物理 · 物理学 2009-11-11 Ricardo Weder , Dimitri Yafaev

We study an inverse scattering problem for the discrete Schr\"{o}dinger operator on the multi-dimensional square lattice, with compactly supported potential. We show that the potential is uniquely reconstructed from a scattering matrix for…

谱理论 · 数学 2024-03-26 Hiroshi Isozaki , Hisashi Morioka

An inverse scattering method based on an auxiliary inverse Sturm-Liouville problem recently proposed by Horv\'ath and Apagyi [Mod. Phys. Lett. B 22, 2137 (2008)] is examined in various aspects and developed further to (re)construct…

数学物理 · 物理学 2012-09-21 Tamas Palmai , Barnabas Apagyi

A one-dimensional generalized nonlinear Schroedinger equation is considered, and the corresponding inverse scattering problem is analyzed when the potential is compactly supported and depends on the wave function. The unique recovery of the…

数学物理 · 物理学 2007-05-23 Tuncay Aktosun , Vassilis G. Papanicolaou , Vassilis Zisis

Simplified solutions of the Cox-Thompson inverse quantum scattering method at fixed energy are derived if a finite number of partial waves with only even or odd angular momenta contribute to the scattering process. Based on new formulae…

数学物理 · 物理学 2011-11-28 Tamas Palmai , Miklos Horvath , Barnabas Apagyi

It is proved that if the scattering amplitudes at a fixed wavenumber for two obstacles from a certain large class of obstacles differ a little, than the obstacles differ a little. Error estimate is given. It is proved that there is an…

数学物理 · 物理学 2007-05-23 A. G. Ramm

We consider the inverse problem of recovering a potential by measuring the response at a point to a source located at the same point and then varying the point on the surface of a sphere. This is a similar to the inverse back-scattering…

偏微分方程分析 · 数学 2014-03-10 Rakesh , Gunther Uhlmann

It has recently been shown that spherically symmetric potentials of finite range are uniquely determined by the part of their phase shifts at a fixed energy level $k^2>0$. However, numerical experiments show that two quite different…

数学物理 · 物理学 2007-05-23 Alexander G. Ramm , Semion Gutman

We consider two formally determined inverse problems for the wave equation in more than one space dimension. Motivated by the fixed angle inverse scattering problem, we show that a compactly supported potential is uniquely determined by the…

偏微分方程分析 · 数学 2020-02-19 Rakesh , Mikko Salo

This paper is concerned with time domain forward scattering and inverse scattering problems with a single moving point source as the emitter. Approximate solutions are provided for the forward scattering problem with a moving emitter.…

数值分析 · 数学 2025-10-13 Yu Sun , Bo Chen , Peng Gao , Qiuyi Li , Yao Sun
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