Ab initio potential energy curves for the , c3Π u , , and states of the strontium dimer.
Nonadiabatic matrix elements (left-hand panel) and spin-orbit coupling matrix elements (right-hand panel) as functions of the interatomic distance R.
Relativistic potential energy curves for the lowest and 1 u states of the strontium dimer. The dots represent the effective empirical potential fitted to the high-resolution Fourier transform spectroscopic data of Ref. 6.
Transition dipole moments between the ground electronic state and the excited states of Sr2 in the non-relativistic basis (left-hand panel) and the relativistic basis (right-hand panel) as functions of the interatomic distance R.
Left-hand panel: Comparison of the original potential with the fitted one to the experimental data6 for J′ = 1. The solid blue line shows the absolute difference, ΔV = V fitted-V ab initio , while the green dashed line shows the relative difference, . Right-hand panel: the same for the spin-orbit coupling term .
Population of the c3Π u and components of the rovibrational levels lying below the 1S0 + 3P1 asymptote.
Rotational constant of the rovibrational levels for J = 1′ (left-hand panel) and rotational spacing, defined by ΔE vJ /(4J − 2) (right-hand panel).
Line strengths corresponding to the P (red solid) and R (blue dashed) branches in the band ν′ = 18 ← ν″ = 27 (upper panel) and ν′ = 19 ← ν″ = 27 (lower panel). The spectral lines in the figures are labeled by the rotational quantum number J″ of the initial state.
Widths of the Feshbach resonances as a function of the population of the c3Π u state and scaling parameter λ of the spin-orbit term .
Parameters of the analytical fits of the , , c3Π u , and potentials (in atomic units) for Sr2. Numbers in parentheses denote the power of 10.
Parameters of the analytical fits of the spin-orbit coupling matrix elements (in atomic units) for Sr2. Numbers in parentheses denote the power of 10.
Excitation energies (in cm−1) for the low-lying energy levels of strontium atom.
Comparison of the present and most recent theoretical and experimental values of the lifetimes of low-lying excited states of strontium atom.
Spectroscopic characteristics of the non-relativistic electronic states of Sr2 dimer.
Spectroscopic characteristics of the relativistic electronic states of Sr2 dimer.
Positions (relative to the 1S0 + 3P1 threshold), widths, and lifetimes of the Feshbach resonances of 88Sr2 above the 1S0 + 3P1 dissociation limit.
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