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    • Electron correlation effects in the presence of non-symmetry dictated nodes

      P Singha Deo

      Volume 58 Issue 2 February 2002 pp 195-203

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/058/02/0195-0203

    • Keywords

       

      Electron correlations; persistent currents; Fano resonances

    • Abstract

       

      We numerically study the effect of non-symmetry dictated nodes (NSDN) on electron correlation effects for spinless electrons. We find that repulsive interaction between electrons can enhance the overlap between nearest neighbors in the tight binding Hamiltonian, in the presence of NSDN. Normally, in the absence of NSDN, attractive interaction between electrons give such an effect and repulsive interaction gives the opposite effect.

    • Author Affiliations

       

      P Singha Deo1

      1. S.N. Bose National Centre for Basic Sciences, J.D. Block, Sector III, Salt Lake City, Kolkata - 700 098, India

    • Dates

       
      Published
      February 2002

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