Publications (17)
Extended Calculations with Spectroscopic Accuracy: Energy Levels and Radiative Rates for O-like Ions between Ar XI and Cr XVII
C. X. Song, C. Y. Zhang, K. Wang +7
Using the multiconfiguration Dirac-Hartree-Fock and the relativistic configuration interaction methods, a consistent set of transition energies and radiative transition data for th…
Nuclear charge radius of Al and its implication for V in the quark-mixing matrix
P. Plattner, E. Wood, L. Al Ayoubi +50
Collinear laser spectroscopy was performed on the isomer of the aluminium isotope Al. The measured isotope shift to Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightar…
A Quantum Similarity Study of Atomic Density Functions: Insights from Information Theory and the Role of Relativistic Effects
A. Borgoo, M. Godefroid, Paul Indelicato +2
A novel quantum similarity measure (QSM) is constructed based on concepts from information theory. In an application of QSM to atoms, the new QSM and its corresponding quantum simi…
Large-scale multiconfiguration Dirac-Hartree-Fock calculations for astrophysics: n=4 levels in P-like ions from Mn~XI to Ni~XIV
C. X. Song, K. Wang, G. Del Zanna +9
Using the multiconfiguration Dirac-Hartree-Fock and the relativistic configuration interaction methods, a consistent set of transition energies and radiative transition data for th…
Theoretical study of the isotope effects on the detachment thresholds of Si
T. Carette, M. Godefroid
The isotope effects in Si bound levels are studied using the multi-configuration Hartree-Fock ab initio approach. Large scale calculations are carried out for the $3p^3\ ^4S^o,…
Hyperfine structures and Landé -factors for states in beryllium-, boron-, carbon-, and nitrogen-like ions from relativistic configuration interaction calculations
S. Verdebout, C. Nazé, P. Jönsson +3
Energy levels, hyperfine interaction constants, and Landé -factors are reported for n=2 states in beryllium-, boron-, carbon-, and nitrogen-like ions from relativistic config…
Operational Families of Entanglement Classes for Symmetric -Qubit States
T. Bastin, S. Krins, P. Mathonet +3
We solve the entanglement classification under stochastic local operations and classical communication (SLOCC) for all multipartite symmetric states in the general -qubit case.…
Entanglement Equivalence of -qubit Symmetric States
P. Mathonet, S. Krins, M. Godefroid +3
We study the interconversion of multipartite symmetric -qubit states under stochastic local operations and classical communication (SLOCC). We demonstrate that if two symmetric…
Large-scale multiconfiguration Dirac-Hartree-Fock calculations for astrophysics: Cl-like ions from Cr~VIII to Zn~XIV
K. Wang, P. Jönsson, G. Del Zanna +4
We use the multiconfiguration Dirac-Hartree-Fock (MCDHF) method combined with the relativistic configuration interaction (RCI) approach (GRASP2K) to provide a consistent set of tra…
Multiconfiguration electron density function for the ATSP2K-package
A. Borgoo, O. Scharf, G. Gaigalas +1
A new ATSP2K module is presented for evaluating the electron density function of any multiconfiguration Hartree-Fock or configuration interaction wave function in the non relativis…
CH in stellar atmospheres: an extensive linelist
T. Masseron, B. Plez, S. Van Eck +7
The advent of high-resolution spectrographs and detailed stellar atmosphere modelling has strengthened the need for accurate molecular data. Carbon-enhanced metal-poor (CEMP) stars…
Exploring Biorthonormal Transformations of Pair-Correlation Functions in Atomic Structure Variational Calculations
S. Verdebout, P. Jönsson, G. Gaigalas +2
Multiconfiguration expansions frequently target valence correlation and correlation between valence electrons and the outermost core electrons. Correlation within the core is often…
Isotope Shifts in Beryllium-, Boron-, Carbon-, and Nitrogen-like Ions from Relativistic Configuration Interaction Calculations
C. Nazé, S. Verdebout, P. Rynkun +3
Energy levels, normal and specific mass shift parameters as well as electronic densities at the nucleus are reported for numerous states along the beryllium, boron, carbon, and nit…
Opacities of Singly and Doubly Ionised Neodymium and Uranium for Kilonova Emission Modeling
A. Flörs, R. F. Silva, J. Deprince +10
Even though the electromagnetic counterpart AT2017gfo to the binary neutron star merger GW170817 is powered by the radioactive decay of r-process nuclei, only few tentative identif…
Tensorial form and matrix elements of the relativistic nuclear recoil operator
E. Gaidamauskas, C. Nazé, P. Rynkun +3
Within the lowest-order relativistic approximation () and to first order in , the tensorial form of the relativistic corrections of the nuclear recoil Hamilton…
High-resolution laser spectroscopy of Al
H. Heylen, C. S. Devlin, W. Gins +24
Hyperfine spectra of Al () have been measured at the ISOLDE-CERN facility via collinear laser spectroscopy using the $3s^23p\ ^2\text{P}^\text{o} _{3/2}\righta…
A Partitioned Correlation Function Interaction approach for describing electron correlation in atoms
S. Verdebout, P. Rynkun, P. Jönsson +3
Traditional multiconfiguration Hartree-Fock (MCHF) and configuration interaction (CI) methods are based on a single orthonormal orbital basis (OB). For atoms with complicated shell…