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Träfflista för sökning "WFRF:(Gori Giorgi Paola) "

Sökning: WFRF:(Gori Giorgi Paola)

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  • Malet, F., et al. (författare)
  • Density-Functional Theory for Strongly Correlated Bosonic and Fermionic Ultracold Dipolar and Ionic Gases
  • 2015
  • Ingår i: Physical Review Letters. - 1079-7114. ; 115:3
  • Tidskriftsartikel (refereegranskat)abstract
    • We introduce a density functional formalism to study the ground-state properties of strongly correlated dipolar and ionic ultracold bosonic and fermionic gases, based on the self-consistent combination of the weak and the strong coupling limits. Contrary to conventional density functional approaches, our formalism does not require a previous calculation of the interacting homogeneous gas, and it is thus very suitable to treat systems with tunable long-range interactions. Because of its asymptotic exactness in the regime of strong correlation, the formalism works for systems in which standard mean-field theories fail.
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3.
  • Malet, Francesc, et al. (författare)
  • Kohn-Sham density functional theory for quantum wires in arbitrary correlation regimes
  • 2013
  • Ingår i: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121. ; 87:11
  • Tidskriftsartikel (refereegranskat)abstract
    • We use the exact strong-interaction limit of the Hohenberg-Kohn energy density functional to construct an approximation for the exchange-correlation term of the Kohn-Sham approach. The resulting exchange-correlation potential is able to capture the features of the strongly correlated regime without breaking the spin or any other symmetry. In particular, it shows "bumps" (or barriers) that give rise to charge localization at low densities and that are a well-known key feature of the exact Kohn-Sham potential for strongly correlated systems. Here, we illustrate this approach for the study of both weakly and strongly correlated model quantum wires, comparing our results with those obtained with the configuration interaction method and with the usual Kohn-Sham local density approximation. DOI: 10.1103/PhysRevB.87.115146
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  • Resultat 1-3 av 3

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