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VOLUME 52 (1990) | ISSUE 7 |
PAGE 999
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New representation of the Hubbard model
Khaliullin G. G.
A representation of the t-J Hamiltonian in terms of localized pseudospins and spinless fermions is found. This representation is used for a qualitative analysis of the quasiparticle spectrum, superconductivity, and nuclear relaxation at a low current-carrier density.
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