16 citations · 32 across the 10 of their papers we have counts for
11 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 Heiße +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…
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…
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…
Solution of the two-center Dirac equation with 20 digits precision using the finite-element technique
O. Kullie, S. Schiller
We present a precise fully relativistic numerical solution of the two-center Coulomb problem. The special case of unit nuclear charges is relevant for the accurate description of t…
Delay time and Non-Adiabatic Calibration of the Attoclock. Multiphoton process versus tunneling in strong field interaction
Ossama Kullie, Igor Ivanov
The measurement of the tunneling time in attosecond experiments, termed attoclock, triggered a hot debate about the tunneling time, the role of time in quantum mechanics, where the…
How to understand the tunneling in attosecond experiment?
Ossama Kullie
The measurement of the tunneling time (T-time) in today's attosecond and strong field (low-frequency) experiments, despite its controversial discussion, offers a fruitful opportuni…
A Density Functional study of Covalency in the Trihalides of Lutetium and Lawrencium
Ossama Kullie
In this work we present a four component relativistic theoretical investigation of the trihalides of lutetium and lawrencium, LuX3, LrX3 (X= F, Cl, Br, I) respectively using densit…
Tunneling time in attosecond experiments, Keldysh, Mandelstam-Tamm and intrinsic-type of time
Ossama Kullie
Tunneling time in attosecond and strong field experiments is one of the most controversial issues in today's research, because of its importance to the theory of time, the time ope…
Tunneling time in attosecond experiments and time-energy uncertainty relation
Ossama Kullie
In this work we present a theoretical model supported with a physical reasoning leading to a relation which performs an excellent estimation for the tunneling time in attosecond an…