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Spin resolved energy parametrization of a quasi-one-dimensional electron gas

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arxiv 0811.0725 v2 pith:BUGMYTGC submitted 2008-11-05 cond-mat.str-el cond-mat.mes-hall

Spin resolved energy parametrization of a quasi-one-dimensional electron gas

classification cond-mat.str-el cond-mat.mes-hall
keywords densityenergyspincalculationselectronparametrizationquasi-one-dimensionalcarlo
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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By carrying out extensive lattice regularized diffusion Monte Carlo calculations, we study the spin and density dependence of the ground state energy for a quasi-one-dimensional electron gas, with harmonic transverse confinement and long-range $1/r$ interactions. We present a parametrization of the exchange-correlation energy suitable for spin density functional calculations, which fulfills exact low and high density limits.

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