Phaseless inverse scattering with background information - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2021

Phaseless inverse scattering with background information

Résumé

We consider phaseless inverse scattering for the multidimensional Schr\"odinger equation with unknown potential $v$ using the method of known background scatterers. In particular, in dimension $d \geq 2$, we show that $|f_1|^2$ at high energies uniquely determines $v$ via explicit formulas, where $f_1$ is the scattering amplitude for $v+w_1$, $w_1$ is an a priori known nonzero background scatterer, under the condition that $supp\, v$ and $supp\, w_1$ are sufficiently disjoint. If this condition is relaxed, then we give similar formulas for finding $v$ from $|f|^2 , |f_1|^2$, where $f$ is the scattering amplitude for $v$. In particular, we continue studies of [Novikov, J. Geom. Anal. 26(1), 346–359, 2016], [Leshem et al, Nature Communications 7(1), 1–6, 2016].
Fichier principal
Vignette du fichier
NS2021.pdf (335.7 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03118893 , version 1 (22-01-2021)
hal-03118893 , version 2 (02-02-2021)

Identifiants

  • HAL Id : hal-03118893 , version 1

Citer

Roman Novikov, Vladimir Sivkin. Phaseless inverse scattering with background information. 2021. ⟨hal-03118893v1⟩
256 Consultations
257 Téléchargements

Partager

More