Pairing correlations in a generalized Hubbard model for the cuprates

Using numerical diagonalization of a (Formula presented) cluster, we calculate on-site s, extended-(Formula presented) and (Formula presented) pairing correlation functions (PCF’s) in an effective generalized Hubbard model for the cuprates, with nearest-neighbor correlated hopping and next-nearest-n...

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Publicado: 2000
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v61_n14_p9686_Arrachea
http://hdl.handle.net/20.500.12110/paper_10980121_v61_n14_p9686_Arrachea
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10980121_v61_n14_p9686_Arrachea
record_format dspace
spelling paper:paper_10980121_v61_n14_p9686_Arrachea2023-06-08T16:07:17Z Pairing correlations in a generalized Hubbard model for the cuprates Using numerical diagonalization of a (Formula presented) cluster, we calculate on-site s, extended-(Formula presented) and (Formula presented) pairing correlation functions (PCF’s) in an effective generalized Hubbard model for the cuprates, with nearest-neighbor correlated hopping and next-nearest-neighbor hopping (Formula presented) The vertex contributions to the PCF’s are significantly enhanced, relative to the (Formula presented) model. The behavior of the PCF’s and their vertex contributions, and signatures of anomalous flux quantization, indicate superconductivity in the d-wave channel for moderate doping and in the s-wave channel for high doping and small U. © 2000 The American Physical Society. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v61_n14_p9686_Arrachea http://hdl.handle.net/20.500.12110/paper_10980121_v61_n14_p9686_Arrachea
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Using numerical diagonalization of a (Formula presented) cluster, we calculate on-site s, extended-(Formula presented) and (Formula presented) pairing correlation functions (PCF’s) in an effective generalized Hubbard model for the cuprates, with nearest-neighbor correlated hopping and next-nearest-neighbor hopping (Formula presented) The vertex contributions to the PCF’s are significantly enhanced, relative to the (Formula presented) model. The behavior of the PCF’s and their vertex contributions, and signatures of anomalous flux quantization, indicate superconductivity in the d-wave channel for moderate doping and in the s-wave channel for high doping and small U. © 2000 The American Physical Society.
title Pairing correlations in a generalized Hubbard model for the cuprates
spellingShingle Pairing correlations in a generalized Hubbard model for the cuprates
title_short Pairing correlations in a generalized Hubbard model for the cuprates
title_full Pairing correlations in a generalized Hubbard model for the cuprates
title_fullStr Pairing correlations in a generalized Hubbard model for the cuprates
title_full_unstemmed Pairing correlations in a generalized Hubbard model for the cuprates
title_sort pairing correlations in a generalized hubbard model for the cuprates
publishDate 2000
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v61_n14_p9686_Arrachea
http://hdl.handle.net/20.500.12110/paper_10980121_v61_n14_p9686_Arrachea
_version_ 1768544607631572992

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