Possible equivalence of Feynmanșs backflow and spin-dependent correlations

S. Vitiello, K. Schmidt, S. Fantoni

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The topic in the title has produced debate about whether spin-dependent correlations should be used in trial wave functions for Hamiltonians that are independent of spin. We investigate this question by calculating the ground-state properties of a small system of (Formula presented) atoms using the variational Monte Carlo method and trial wave functions, first, with explicit backflow correlations and second, with spin-dependent correlations. We review how backflow and spin-dependent correlations can be made approximately equivalent, and then give Monte Carlo results which demonstrate that spin-dependent correlations can substantially reproduce the effect of backflow correlations.

Original languageEnglish (US)
Pages (from-to)5647-5650
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume55
Issue number9
DOIs
StatePublished - Jan 1 1997
Externally publishedYes

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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