Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators

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It is shown that the value obtained for the energy-weighted sum rule for bilinear fermionic operators using dressed one-particle propagators plus two-body random-phase approximation corrections is preserved when any higher-order correction is introduced. This is proven through the evaluation of the...

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Autores principales: Dussel, Guillermo Gaspar, Perazzo, Roberto Pedro José, Sofía, Hugo Mario
Publicado: 1991
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v43_n3_p1211_Dussel
http://hdl.handle.net/20.500.12110/paper_05562813_v43_n3_p1211_Dussel
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_05562813_v43_n3_p1211_Dussel2023-06-08T15:41:35Z Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators Dussel, Guillermo Gaspar Perazzo, Roberto Pedro José Sofía, Hugo Mario It is shown that the value obtained for the energy-weighted sum rule for bilinear fermionic operators using dressed one-particle propagators plus two-body random-phase approximation corrections is preserved when any higher-order correction is introduced. This is proven through the evaluation of the corresponding perturbative diagrams. © 1991 The American Physical Society. Fil:Dussel, G.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Perazzo, R.P.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sofia, H.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v43_n3_p1211_Dussel http://hdl.handle.net/20.500.12110/paper_05562813_v43_n3_p1211_Dussel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description It is shown that the value obtained for the energy-weighted sum rule for bilinear fermionic operators using dressed one-particle propagators plus two-body random-phase approximation corrections is preserved when any higher-order correction is introduced. This is proven through the evaluation of the corresponding perturbative diagrams. © 1991 The American Physical Society.
author Dussel, Guillermo Gaspar
Perazzo, Roberto Pedro José
Sofía, Hugo Mario
spellingShingle Dussel, Guillermo Gaspar
Perazzo, Roberto Pedro José
Sofía, Hugo Mario
Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
author_facet Dussel, Guillermo Gaspar
Perazzo, Roberto Pedro José
Sofía, Hugo Mario
author_sort Dussel, Guillermo Gaspar
title Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
title_short Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
title_full Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
title_fullStr Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
title_full_unstemmed Perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
title_sort perturbative analysis of the energy-weighted sum rule of bilinear fermion operators
publishDate 1991
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v43_n3_p1211_Dussel
http://hdl.handle.net/20.500.12110/paper_05562813_v43_n3_p1211_Dussel
work_keys_str_mv AT dusselguillermogaspar perturbativeanalysisoftheenergyweightedsumruleofbilinearfermionoperators
AT perazzorobertopedrojose perturbativeanalysisoftheenergyweightedsumruleofbilinearfermionoperators
AT sofiahugomario perturbativeanalysisoftheenergyweightedsumruleofbilinearfermionoperators
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