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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 | Abstract: | Using 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 | Services: | Forum | Review | PDF | Favorites |
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