Hylleraas-configuration-interaction study of the 1S ground state of neutral beryllium

James S. Sims and Stanley A. Hagstrom
Phys. Rev. A 83, 032518 – Published 31 March 2011
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  • INTRODUCTION
  • METHOD OF CALCULATION
  • RESULTS
  • DISCUSSION
  • CONCLUSION
  • ACKNOWLEDGEMENTS
  • APPENDICES
    • References

    Abstract

    Hylleraas-configuration-interaction (Hy-CI) method variational calculations are reported for the 1S ground state of neutral beryllium. The best nonrelativistic energy obtained was −14.667 356 4 hartree, which is estimated to be accurate to a tenth of a microhartree.

    • Received 14 December 2010

    DOI:https://doi.org/10.1103/PhysRevA.83.032518

    ©2011 American Physical Society

    Authors & Affiliations

    James S. Sims

    • National Institute of Standards and Technology, Gaithersburg, Maryland 20878-9957, USA

    Stanley A. Hagstrom

    • Departments of Chemistry and Computer Science, Indiana University, Bloomington, Indiana 47405, USA

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    Issue

    Vol. 83, Iss. 3 — March 2011

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