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Stephan Fritzsche
Researcher at Helmholtz Institute Jena
Publications - 521
Citations - 8042
Stephan Fritzsche is an academic researcher from Helmholtz Institute Jena. The author has contributed to research in topics: Ionization & Electron. The author has an hindex of 38, co-authored 478 publications receiving 6582 citations. Previous affiliations of Stephan Fritzsche include Max Planck Society & Schiller International University.
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Differential cross section minima in elastic scattering of electrons from zinc
TL;DR: In this article, an approach based on the Dirac-Fock method including the exchange interaction between the incident and the target electrons was proposed to search for minima in the angle and energy differential cross sections for the elastic scattering of electrons from zinc.
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Hyperfine structure study of Tc 97 , 98 , 99 in a new laser ion source for high-resolution laser spectroscopy
T. Kron,R. Beerwerth,R. Beerwerth,S. Raeder,Stephan Fritzsche,Stephan Fritzsche,R. Heinke,Pascal Schönberg,M. Trümper,Klaus Wendt +9 more
TL;DR: In this paper, the authors investigated the hyperfine splittings of three different atomic transitions in the long-lived isotopes and provided the first hyperfine structure data for the isotopes from which, in combination with the known nuclear moments, their nuclear magnetic dipole and electric quadrupole moments were extracted.
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Control of entanglement and two-qubit quantum gates with atoms crossing a detuned optical cavity
D. Gonta,Stephan Fritzsche +1 more
TL;DR: In this article, the authors proposed a scheme to generate an entangled state between two (Λ-type) four-level atoms that interact effectively by means of a detuned optical cavity and a laser beam that acts perpendicularly to the cavity axis.
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Angular coefficients for symmetry-adapted configuration states in jj-coupling
TL;DR: A new implementation of the angular coefficients for jj-coupled and symmetry-adapted configuration states that is entirely built upon the quasi-spin formalism will help advance the algebraic evaluation of many-electron (transition) amplitudes and to apply the theory to newly emerging research areas.
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Breakdown of the electric dipole approximation at Cooper minima in direct two-photon ionisation.
TL;DR: It is shown that by inclusion of electric quadrupole interaction, dramatic drop of orientation purity is obtained and the low degree of the remaining ion orientation provides a direct access to contributions of the electron- photon interaction beyond the electric dipole approximation in the two-photon ionisation of atoms and molecules.