<div class="csl-bib-body">
<div class="csl-entry">Rotter, S. (2025, April 28). <i>The concept of Fisher information in wave scattering</i> [Presentation]. Ulm University, Physics Colloquium, Ulm, Germany.</div>
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In my talk, I will discuss recent progress in applying the concept of classical and quantum Fisher information to the problem of estimating system parameters in complex environments, such as inside or behind a disordered medium. In particular, I will demonstrate how Fisher Information can be maximised through wavefront shaping and quantum state engineering [1,2]. Quite interestingly, the density and flux of Fisher information satisfy a fundamental continuity equation – in analogy to the Poynting theorem for the density and flux of energy in a radiation field [3]. If time permits, I will also say a few words about how such concepts can be generalised
to the flow of Fisher Information through Artificial Neural Networks.
[1] Maximum information states for coherent scattering measurements, D. Bouchet, S. Rotter, and A. P. Mosk, Nature Physics 17, 564 (2021).
[2] How to find optimal quantum states for optical micromanipulation and metrology in complex scattering problems, L. M. Rachbauer, D. Bouchet, U. Leonhardt, and S. Rotter, J. Opt. Soc. Am. B 41, 2122
(2024).
[3] Continuity equation for the flow of Fisher information in wave scattering, J. Hüpfl, F. Russo, L. M. Rachbauer, D. Bouchet, J. Lu, U. Kuhl, and S. Rotter, Nature Physics 20, 1294 (2024).
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
Fisher information
en
dc.subject
Wave scattering
en
dc.title
The concept of Fisher information in wave scattering
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
P 32300-N27
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dc.relation.grantno
PIN7240924
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dc.type.category
Presentation
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tuw.publication.invited
invited
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tuw.project.title
Wellenkontrolle in Systemen mit Absorption und Unordnung
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tuw.project.title
Metastrukturen für die Wellenkontrolle in komplexen Medien
