Electric dipole polarizability of alkaline-Earth-metal atoms from perturbed relativistic coupled-cluster theory with triples

Abstract

The perturbed relativistic coupled-cluster (PRCC) theory is applied to calculate the electric dipole polarizabilities of alkaline Earth metal atoms. The Dirac-Coulomb-Breit atomic Hamiltonian is used and we include the triple excitations in the relativistic coupled-cluster (RCC) theory. The theoretical issues related to the triple excitation cluster operators are described in detail and we also provide details on the computational implementation. The PRCC theory results are in good agreement with the experimental and previous theoretical results. We, then, highlight the importance of considering the Breit interaction for alkaline Earth metal atoms.

13 pages, 11 figures, 9 tables, Minor changes, References updated

References in corpus (10)

• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• Medium-mass nuclei from chiral nucleon-nucleon interactions
• Bose-Einstein condensation of alkaline earth atoms: ${}^{40}${Ca}
• Intrinsic Electric Dipole Moments of Paramagnetic Atoms: Rubidium and Cesium
• Relativistic coupled-cluster single-double method applied to alkali-metal atoms
• Correlation trends in the ground state static electric dipole polarizabilities of closed-shell atoms and ions
• Fock space relativistic coupled-Cluster calculations of Two-Valence Atoms
• Perturbed Coupled-Cluster theory to calculate dipole polarizabilities of closed shell systems: Application to Ar, Kr, Xe and Rn
• Electric dipole polarizability from perturbed Relativistic Coupled-Cluster Theory: application to Neon
• Electric dipole polarizabilities of doubly ionized alkaline Earth metal ions from perturbed relativistic coupled-cluster theory

Cited by in corpus (10)

• Production of NaCa${}^{+}$ molecular ions in the ground state from cold atom-ion mixtures by photoassociation via an intermediate state
• Triple excitations in perturbed relativistic coupled-cluster theory and Electric dipole polarizability of groupIIB elements
• RCC calculation of electric dipole polarizability and correlation energy of Cn, Nh${}^{+}$ and Og: Correlation effects from lighter to superheavy elements
• Electric dipole polarizability of group-IIIA ions using PRCC: Large correlation effects from nonlinear terms
• RCCPAC: A parallel relativistic coupled-cluster program for closed-shell and one-valence atoms and ions in FORTRAN
• Fock-space relativistic coupled-cluster calculation of hyperfine induced ${}^1{\mathbf{S}}_0\to {}^3{\mathbf{P}}_0^{\mathbf{o}}$ clock transition in Al${}^{+}$
• Ab initio calculations of permanent dipole moments and dipole polarizabilities of alkaline-earth monofluorides
• Fock-space perturbed relativistic coupled-cluster theory for electric dipole polarizability of one-valence atomic systems: Application to Al and In
• Relativistic and Electron Correlation Effects in Static Dipole Polarizabilities for Main-Group Elements
• Ab Initio Calculations of the Static and Dynamic Polarizability of BaOH