Precise estimation of shell model energy by second-order extrapolation method

Takahiro Mizusaki*, Masatoshi Imada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


A second-order extrapolation method is presented for shell model calculations, where shell model energies of truncated spaces are well described as a function of energy variance by quadratic curves, and exact shell model energies can be obtained by the extrapolation. This new extrapolation can give more precise energy than those of first-order extrapolation method. It is also clarified that first-order extrapolation gives a lower limit of shell model energy. In addition to the energy, we derive the second-order extrapolation formula for expectation values of other observables.

Original languageEnglish
Article number041301
Pages (from-to)413011-413015
Number of pages5
JournalPhysical Review C - Nuclear Physics
Issue number4
Publication statusPublished - 2003 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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