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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todo:paper_10980121_v61_n14_p9686_Arrachea2023-10-03T16:05:39Z Pairing correlations in a generalized Hubbard model for the cuprates Arrachea, L. Aligia, A. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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. |
format |
JOUR |
author |
Arrachea, L. Aligia, A. |
spellingShingle |
Arrachea, L. Aligia, A. Pairing correlations in a generalized Hubbard model for the cuprates |
author_facet |
Arrachea, L. Aligia, A. |
author_sort |
Arrachea, L. |
title |
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 |
url |
http://hdl.handle.net/20.500.12110/paper_10980121_v61_n14_p9686_Arrachea |
work_keys_str_mv |
AT arracheal pairingcorrelationsinageneralizedhubbardmodelforthecuprates AT aligiaa pairingcorrelationsinageneralizedhubbardmodelforthecuprates |
_version_ |
1807322537682534400 |