Superconducting correlation in the one-dimensional t-J model with anisotropic spin interaction and broken parity
J. Shiraishi, Y. Morita, M. Kohmoto
Abstract
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.
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