Many-body wavefunctions for normal liquid He3

Markus Holzmann, Bernard Bernu, D. M. Ceperley

Research output: Contribution to journalArticle

Abstract

We present new trial wave functions which include three-body correlations into the backflow coordinates and a four-body symmetric potential. We show that our wave functions lower the energy enough to stabilize the ground state energies of normal liquid He3 in the unpolarized state at all pressures in agreement with experiment; however, quantitative discrepancies remain. Further, we include strong spin coupling into the Fermi liquid by adapting pairing wave functions. We demonstrate a new, numerically stable method to evaluate pairing functions which is also useful for path integrals calculations at low, but nonzero temperatures.

Original languageEnglish (US)
Article number104510
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number10
DOIs
StatePublished - Oct 2 2006

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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