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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Detalles Bibliográficos
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
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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