5 papers
The quantum superluminality in the tunnel-ionization process of H-like atoms
Ossama Kullie, Igor A. Ivanov
The quantum tunneling time remains the subject of heated debate, and one of its most curious features is faster-than-light or superluminal tunneling. Our tunnel-ionization model of…
High-precision Penning-trap spectroscopy of the ground-state spin structure of HD+
Charlotte M. König, Matthew Bohman, Fabian HeiÃe +10
We present high-precision spectroscopy of the ground-state hyperfine structure of HD at 4~T. We determine the bound-electron factor, $g_{e,\mathrm{bound}} = -2.002\,278\,54…
Precision calculation of the bound-electron factor in molecular hydrogen ions
Ossama Kullie, Hugo D. Nogueira, Jean-Philippe Karr
We calculate the bound-electron factor for a wide range of rovibrational states of the molecular hydrogen ions H and HD. Relativistic and QED corrections of orders up…
Universal Behavior of Tunneling Time and Barrier Time-Delay Decoupling in Attoclock Measurements
Ossama Kullie
The measurement of the tunneling time-delay is hotly debated and remains controversial. In previous works, we showed that a model that accurately describes the time-delay measured…
High-precision minmax solution of the two-center Dirac equation
Ossama Kullie
We present a high-precision solution of Dirac equation by numerically solving the minmax two-center Dirac equation with the finite element method (FEM). The minmax FEM provide a hi…