Low-energy phase shifts and scattering length of strontium from Dirac-Coulomb and polarization potential modeling
Abstract
We present a calculation of the low-energy phase shift and scattering length for the strontium atom, using the Dirac-Coulomb Hamiltonian augmented with a model polarization potential. The scattering length is extracted from the asymptotic behavior of the wave function in the zero-energy limit. To evaluate the reliability of our results, we compare them with existing experimental data and previous theoretical predictions. Bound-state properties are obtained using a multiconfigurational approach with the GRASP2018 package, while continuum states are computed with a modified version of the GRASP code, known as GRASPC, recently published in Computer Physics Communications.
Fields of Study & Subjects
Quantum Mechanics and Non-Hermitian Physics
Cold Atom Physics and Bose-Einstein Condensates
Atomic and Molecular Physics
Publication details
- Journal / source
- Atomic Data and Nuclear Data Tables
- Publisher
- Elsevier BV
- Volume
- 168
- Pages
- 101783–101783
- Publication date
- 8 January 2026
- Language
- EN