Enhanced pairing in the checkerboard Hubbard ladder
نویسندگان
چکیده
منابع مشابه
The Fermion-ladder Models: Extentions of the Hubbard Model with η-pairing
We propose the two-leg fermion-ladder models for SU(2|2) and SU(4) cases. The former is exactly the extended Hubbard model proposed by Essler, Korepin and Schoutens. The later is a new model also with η-pairing symmetry which is important for superconductivity. This new extension of the Hubbard model can be solved exactly. PACS: 75.10.Jm, 71.10.Fd, 05.30.Fk. Since the discovery of high-temperat...
متن کاملThe Fermion-ladder Models: Extensions of the Hubbard Model with η-pairing
We propose the two-leg fermion-ladder models for SU(2|2) and SU(4) cases. The former is exactly the extended Hubbard model proposed by Essler, Korepin and Schoutens. The later is a new model also with η-pairing symmetry which is important for superconductivity. This new extension of the Hubbard model can be solved exactly. PACS: 75.10.Jm, 71.10.Fd, 05.30.Fk. Since the discovery of high-temperat...
متن کاملD ec 1 99 6 Monte Carlo study of the pairing interaction in the two - leg Hubbard ladder
Monte Carlo calculations of the irreducible particle-particle interaction on a two-leg Hubbard ladder doped near half-filling are reported. As the temperature is lowered, this interaction develops structure in momentum space similar to the magnetic susceptibility χ(q) and reflects the development of strong short-range antiferromagnetic correlations. Using this interaction, the eigenfunction of ...
متن کاملec 1 99 6 Monte Carlo study of the pairing interaction in the two - leg Hubbard ladder
Monte Carlo calculations of the irreducible particle-particle interaction on a two-leg Hubbard ladder doped near half-filling are reported. As the temperature is lowered, this interaction develops structure in momentum space similar to the magnetic susceptibility χ(q) and reflects the development of strong short-range antiferromagnetic correlations. Using this interaction, the eigenfunction of ...
متن کاملCorrelation functions in the three-chain Hubbard ladder.
In order to check whether odd-numbered Tomonaga-Luttinger ladders are dominated by antiferromagnetic correlations associated with gapless spin excitations, correlation functions of the doped three-chain Hubbard model are obtained with the bosonization at the renormalization-group fixed point. The correlation of the singlet superconducting pairing across the central and edge chains is found to b...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2011
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.83.054508