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19 April 2024
 
  » arxiv » cond-mat/9310001

 Article overview


Hole-Hole Contact Interaction in the t-J Model
A.L. Chernyshev ; A.V. Dotsenko ; O.P. Sushkov ;
Date 1 Oct 1993
Journal Phys. Rev. B 49, 6197 (1994)
Subject cond-mat
AbstractUsing an analytical variational approach we calculate the hole-hole contact interaction on the Néel background. Solution of the Bethe-Salpeter equation with this interaction gives bound states in $d$- and p-waves with binding energies close to those obtained by numerical methods. At $t/J ge 2-3$ the bound state disappears. In conclusion we discuss the relation between short range and long range interactions and analogy with the problem of pion condensation in nuclear matter.
Source arXiv, cond-mat/9310001
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