Self-energies for the particle-hole propagator from Feynman-Dyson equations
Correlation-relaxation corrections to electronic transition energies are obtained through the self-energy fields for the particle-hole propagator. These objects are generated from Feynman-Dyson like equations within the scenario of the superoperator algebra. A Hartree-Fock reference state and a part...
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1995
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| LEADER | 07961caa a22008777a 4500 | ||
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| 100 | 1 | |a Bochicchio, Roberto Carlos | |
| 245 | 1 | 0 | |a Self-energies for the particle-hole propagator from Feynman-Dyson equations |
| 260 | |c 1995 | ||
| 270 | 1 | 0 | |m Grinberg, H.; Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a Correlation-relaxation corrections to electronic transition energies are obtained through the self-energy fields for the particle-hole propagator. These objects are generated from Feynman-Dyson like equations within the scenario of the superoperator algebra. A Hartree-Fock reference state and a partition of the operator space along with a particle conserving manifold are used to recast the lower order perturbative expressions for the self-energies. Correlated states are used to make explicit the appearance of higher order correction terms to the self-energy. It is explicitly shown that the present scheme leads to a proper classification of the order of the contribution from both the intrinsic interaction operator and the improved reference state. © 1995. |l eng | |
| 536 | |a Detalles de la financiación: EX-093, 3538/93a | ||
| 536 | |a Detalles de la financiación: Fundación Antorchas | ||
| 536 | |a Detalles de la financiación: This work has been madep ossibleb y research grantsi n aid from the University of BuenosA ires (ProjectN o. EX-093, Res. No. 3538/93a) nd Con-sejo National de InvestigacionesC ientificas y Tecnicas, Republica Argentina (Res. No. 1047-48/93). The authors are grateful to the Department of Physics, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, for facilitiesp rovidedd uring the courseo f this work. Financial support ‘from Antorchas Foundation (Res. A-12830/1-00007i0s) g reatlya cknowledged. | ||
| 593 | |a Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
| 700 | 1 | |a Ferraro, Marta Beatriz | |
| 700 | 1 | |a Grinberg, H. | |
| 700 | 1 | |a Cavasotto, C. | |
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