276 citations · 902 across the 17 of their papers we have counts for
5 papers · 2 filters
"Dressing" lines and vertices in calculations of matrix elements with the coupled-cluster method and determination of Cs atomic properties
Andrei Derevianko, Sergey Porsev
We consider evaluation of matrix elements with the coupled-cluster method. Such calculations formally involve infinite number of terms and we devise a method of partial summation (…
Off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 levels in 133Cs
W. R. Johnson, H. C. Ho, Carol E. Tanner +1
The off-diagonal hyperfine interaction between the 6p1/2 and 6p3/2 states in 133Cs is evaluated in third-order MBPT giving 37.3 Hz and 48.3 Hz, respectively, for second-order energ…
Effects of confinement on the permanent electric-dipole moment of Xe atoms in liquid Xe
Boris Ravaine, Andrei Derevianko
Searches for permanent electric-dipole moments (EDM) of atoms provide important constraints on competing extensions to the standard model of elementary particles. Recently proposed…
Possibility of an ultra-precise optical clock using the transition in Yb atoms held in an optical lattice
Sergey Porsev, Andrei Derevianko, Norval Fortson
We report calculations designed to assess the ultimate precision of an atomic clock based on the 578 nm transition in Yb atoms confined in an optical lattic…
Relaxation effect and radiative corrections in many-electron atoms
Andrei Derevianko, Boris Ravaine, W. R. Johnson
We illuminate the importance of a self-consistent many-body treatment in calculations of vacuum polarization corrections to the energies of atomic orbitals in many-electron atoms.…