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Quantum Monte Carlo study of the ground state of the two-dimensional Fermi fluid

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Published
Article number085414
<mark>Journal publication date</mark>13/02/2009
<mark>Journal</mark>Physical Review B
Issue number8
Volume79
Number of pages8
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

We have used the variational and diffusion quantum Monte Carlo methods to calculate the energy, pair-correlation function, static structure factor, and momentum density of the ground state of the two-dimensional (2D) homogeneous electron gas. We have used highly accurate Slater-Jastrow-backflow trial wave functions and twist averaging to reduce finite-size effects where applicable. We compare our results with others in the literature and construct a local-density-approximation exchange-correlation functional for 2D systems.

Bibliographic note

© 2009 The American Physical Society