Vladimir Dzuba | Searcharxiv

arXiv2020

Theoretical study of the spectroscopic properties of mendelevium ($Z=101$)

Using recently developed version of the configuration interaction method for atoms with open shells we calculate electron structure and spectroscopic properties of the mendelevium atom (Md, $Z=101$). These include energy levels, first and second ionisation potentials, electron affinity, hyperfine structure and electric dipole transition amplitudes between ground and low lying states of opposite parity. The accuracy of the calculations is controlled by performing similar calculations for lighter analog of mendelevium, thulium atom and comparing the results with experiment and other calculations. The calculations for Md are to address the lack of experimental data and help in planing and interpreting the measurements.

physics.atom-ph↗

arXiv2014

Optical atomic clocks with suppressed black body radiation shift

We study a wide range of neutral atoms and ions suitable for ultra-precise atomic optical clocks with naturally suppressed black body radiation shift of clock transition frequency. Calculations show that scalar polarizabilities of clock states cancel each other for at least one order of magnitude for considered systems. Results for calculations of frequencies, quadrupole moments of the states, clock transition amplitudes and natural widths of upper clock states are presented.

physics.atom-ph↗