Static response from quantum Monte Carlo calculations

Saverio Moroni, David M. Ceperley, Gaetano Senatore

Research output: Contribution to journalArticlepeer-review

Abstract

We have evaluated the density-density static response of a many-body system by calculating with the quantum Monte Carlo method the energy and density change caused by an external potential. Our results for the linear response function of liquid 4He at zero pressure and temperature are in excellent agreement with the available experimental data. The results for the response function of 2D electrons also at zero temperature, obtained within the fixed-node approximation, constitute the most accurate information available to date for this system.

Original languageEnglish (US)
Pages (from-to)1837-1840
Number of pages4
JournalPhysical review letters
Volume69
Issue number13
DOIs
StatePublished - 1992

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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