Induced Order in Nonequivalent Two-Leg Hubbard Ladder
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Publication:3656947
DOI10.1143/PTP.122.943zbMATH Open1181.82083arXiv0903.1697MaRDI QIDQ3656947
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Publication date: 14 January 2010
Published in: Progress of Theoretical Physics (Search for Journal in Brave)
Abstract: 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.
Full work available at URL: https://arxiv.org/abs/0903.1697
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Statistical mechanics of superconductors (82D55) Renormalization group methods in equilibrium statistical mechanics (82B28)
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