Stabilization method with the relativistic configuration-interaction calculation applied to two-electron resonances

Pedro Amaro, José Paulo Santos, S. Bhattacharyya, T. K. Mukherjee, J. K. Saha

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We applied a relativistic configuration-interaction (CI) framework to the stabilization method as an approach for obtaining the autoionization resonance structure of heliumlike ions. In this method, the ion is confined within an impenetrable spherical cavity, the size of which determines the radial space available for electron wave functions and electron-electron interactions. By varying the size of the cavity, one can obtain the autoinization resonance position and width. The applicability of this method is tested on the resonances of He atom while comparing with benchmark data available in the literature. The present method is further applied on the determination of the resonance structure of heliumlike uranium ion, where a relativistic framework is mandatory. In the strong-confinement region, the present method can be useful to simulate the properties of an atom or ion under extreme pressure. An exemplary application of the present method to determine the structure of ions embedded in dense plasma environment is briefly discussed.

Original languageEnglish
Article number012811
JournalPhysical Review A
Volume103
Issue number1
DOIs
Publication statusPublished - Jan 2021

Fingerprint

Dive into the research topics of 'Stabilization method with the relativistic configuration-interaction calculation applied to two-electron resonances'. Together they form a unique fingerprint.

Cite this