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- Helmholtz Institute JenaDE407 papers
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175 papers · 1 filter
Probing vacuum polarization effects with high-intensity lasers
Felix Karbstein
These notes provide a pedagogical introduction to the theoretical study of vacuum polarization effects in strong electromagnetic fields as provided by state-of-the-art high-intensi…
The trident process in laser pulses
Victor Dinu, Greger Torgrimsson
We study the trident process in laser pulses. We provide exact numerical results for all contributions, including the difficult exchange term. We show that all terms are in general…
Multiple photodetachment of carbon anions via single and double core-hole creation
A. Perry-Sassmannshausen, T. Buhr, A. Borovik +8
We report on new measurements of m-fold photodetachment (m=2-5) of carbon anions via K-shell excitation and ionization. The experiments were carried out employing the photon-ion me…
Spectroscopic characterization of nine binary star systems as well as HIP107136 and HIP107533
T. Heyne, M. Mugrauer, R. Bischoff +6
We present the results of our 2nd radial velocity monitoring campaign, carried out with the Échelle spectrograph FLECHAS at the University Observatory Jena in the course of the Gro…
Two-color phase-of-the-phase spectroscopy applied to nonperturbative electron-positron pair production in strong oscillating electric fields
J. Braß, R. Milbradt, S. Villalba-Chávez +2
Production of electron-positron pairs from vacuum in strong bichromatic electric fields, oscillating in time with a fundamental frequency and its second harmonic, is studied. Stron…
Conformal bridge between asymptotic freedom and confinement
Luis Inzunza, Mikhail S. Plyushchay, Andreas Wipf
We construct a nonunitary transformation that relates a given "asymptotically free" conformal quantum mechanical system with its confined, harmonically trapped version .…