624 citations
- U. Jentschura16 · h 37
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10 papers · 1 filter
Abundance of Ground States with Positive Parity
T. Papenbrock, H. A. Weidenmueller
We investigate analytically and numerically a random-matrix model for m fermions occupying l1 single-particle states with positive parity and l2 single-particle states with negativ…
Nuclear excitation by electron capture followed by fast x-ray emission
Adriana Pálffy, Zoltán Harman, Christophor Kozhuharov +4
The resonance strength of the two-step process of nuclear excitation by electron capture followed by decay of the nucleus can be significantly increased in highly charged ions…
Electric dipole-forbidden nuclear transitions driven by super-intense laser fields
Adriana Pálffy, Jörg Evers, Christoph H. Keitel
Electric dipole-forbidden transitions of nuclei interacting with super-intense laser fields are investigated considering stable isotopes with suitable low-lying first excited state…
Isomer triggering via nuclear excitation by electron capture
Adriana Pálffy, Jörg Evers, Christoph H. Keitel
Triggering of long-lived nuclear isomeric states via coupling to the atomic shells in the process of nuclear excitation by electron capture (NEEC) is studied. NEEC occurring in hig…
Random Matrices and Chaos in Nuclear Spectra
T. Papenbrock, H. A. Weidenmueller
We speak of chaos in quantum systems if the statistical properties of the eigenvalue spectrum coincide with predictions of random-matrix theory. Chaos is a typical feature of atomi…
Radiative orbital electron capture by the atomic nucleus
K. Pachucki, U. D. Jentschura, M. Pfutzner
The rate for the photon emission accompanying orbital 1S electron capture by the atomic nucleus is recalculated. While a photon can be emitted by the electron or by the nucleus, th…