Two-dimensional electron gas: correlation energy versus density and spin polarization

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dc.creatorGori-Giorgi, Paola
dc.creatorAttaccalite, Claudio
dc.creatorMoroni, Saverio
dc.creatorBachelet, Giovanni B.
dc.date2001-10-21
dc.date2003-09-11
dc.date.accessioned2026-07-07T02:43:14Z
dc.date.available2026-07-07T02:43:14Z
dc.descriptionWe propose a simple analytic representation of the correlation energy for the two-dimensional electron gas, as a function of the density and the spin polarization. This new parametrization includes most of the known high- and low- density limits and fits our new fixed-node diffusion Monte Carlo simulations, performed for a wide range of electron densities and spin-polarization states. In this way we provide a reliable local-spin-density energy functional for two-dimensional systems. The corresponding correlation potential is discussed and compared with previous models.
dc.descriptionminor typos corrected, see also cond-mat/0109492
dc.identifierhttps://arxiv.org/abs/cond-mat/0110444
dc.identifierhttp://arxiv.org/abs/cond-mat/0110444
dc.identifierInt. J. Quantum Chem. 91, 126 (2003)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18416
dc.subjectStrongly Correlated Electrons
dc.titleTwo-dimensional electron gas: correlation energy versus density and spin polarization
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