Induced Order in Nonequivalent Two-Leg Hubbard Ladder

Details Induced Order in Nonequivalent Two-Leg Hubbard Ladder Induced Order in Nonequivalent Two-Leg Hubbard Ladder

2009-03-10

arxiv.org/abs/0903.1697v2

Prog. Theor. Phys. 122 (2009), 943-951

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages

Scientific paper

10.1143/PTP.122.943

Motivated by the presence of different orders in multilayered high-temperature superconductors, we examine a model consisting of nonequivalent two Hubbard chains coupled by interchain hopping by using the density-matrix renormalization group (DMRG) and a mean-field theory. As an example, we consider a system with noninteracting chain without order and a Hubbard chain with strong spin-density-wave correlation. We find that the magnitude of the interchain hopping controls the strength of induced order as well as that of original order and its fluctuation. It is also found that the induced order decreases with increasing the magnitude of the original order. Implications to the multilayered system are discussed.

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