Physics – Condensed Matter
Scientific paper
1995-12-08
Physics
Condensed Matter
REVTeX
Scientific paper
A variant of the one-dimensional $t$-$J$ model with anisotropic spin interaction and broken parity is studied by the nested algebraic Bethe-ansatz method. The gapless charge excitations and the gapful spin excitations are obtained. It is shown that the singlet-superconducting correlation dominates in the low-density region by applying the finite-size scaling analysis in the conformal field theory.
Kohmoto Mahito
Morita Yasuhiro
Shiraishi Jun'ichi
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