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The Resonating-Valence-Bond Ground State of Li Nanoclusters

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 نشر من قبل Bernardo Barbiellini
 تاريخ النشر 2008
  مجال البحث فيزياء
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We have performed Diffusion Quantum Monte Carlo simulations of Li clusters showing that Resonating-Valence-Bond (RVB) pairing correlations between electrons provide a substantial contribution to the cohesive energy. The RVB effects are identified in terms of electron transfers from s- to p-like character, constituting a possible explanation for the breakdown of the Fermi liquid picture observed in recent high resolution Compton scattering experiments for bulk Li.



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