Fermion Parquet: The Approximations: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Fermion Parquet: The Approximations

Smith, Roger Alan / Jackson, A. D.

The full parquet approach to many-body theory represents a self-consistent summation of Feynman diagrams for the two-body Green’s function, G₂, in terms of the bare interaction, V, and the one-body Green’s function, G. The parquet equations sum the reducible diagrams for G₂ which are generated from any initial set of irreducible diagrams. The full one-body G which is used in the construction process is obtained from the proper self-energy ∑ and the non-interacting Green’s function with the usual Dyson equation. One level of self-consistency is attained by constructing the ∑ from the G₂. The ∑ is obtained by closing off the G₂ with a V as shown in fig. 1.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Fermion Parquet: The Approximations

Smith, Roger Alan / Jackson, A. D.

The full parquet approach to many-body theory represents a self-consistent summation of Feynman diagrams for the two-body Green’s function, G₂, in terms of the bare interaction, V, and the one-body Green’s function, G. The parquet equations sum the reducible diagrams for G₂ which are generated from any initial set of irreducible diagrams. The full one-body G which is used in the construction process is obtained from the proper self-energy ∑ and the non-interacting Green’s function with the usual Dyson equation. One level of self-consistency is attained by constructing the ∑ from the G₂. The ∑ is obtained by closing off the G₂ with a V as shown in fig. 1.

Fermion Parquet: The Approximations

Smith, Roger Alan / Jackson, A. D.

The full parquet approach to many-body theory represents a self-consistent summation of Feynman diagrams for the two-body Green’s function, G₂, in terms of the bare interaction, V, and the one-body Green’s function, G. The parquet equations sum the reducible diagrams for G₂ which are generated from any initial set of irreducible diagrams. The full one-body G which is used in the construction process is obtained from the proper self-energy ∑ and the non-interacting Green’s function with the usual Dyson equation. One level of self-consistency is attained by constructing the ∑ from the G₂. The ∑ is obtained by closing off the G₂ with a V as shown in fig. 1.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Fermion Parquet: The Approximations

Contributors:

Kallio, A. J. (editor) / Pajanne, E. (editor) / Bishop, R. F. (editor) / Smith, Roger Alan (author) / Jackson, A. D. (author)

Published in:

Recent Progress in Many-Body Theories ; Chapter: 33 ; 1 ; 327-333

Publication date:

1988-01-01

Size:

7 pages

ISBN:

978-1-4613-0973-4 , 978-1-4612-8272-3

DOI:

https://doi.org/10.1007/978-1-4613-0973-4_33

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Vertex Correction , Ladder Diagram , Fermion Case , Irreducible Diagram , Bare Interaction Physics , Condensed Matter Physics , Characterization and Evaluation of Materials , Physics and Astronomy

Similar titles

Fermion Parquet Equations

Lande, Alexander / Smith, Roger Alan | Springer Verlag | 1988

CP Parquet - CP Parquet Lab Design

Online Contents | 2014

BELONOGOVA NATALYA ALEKSANDROVNA / BIRMAN ALEKSEJ ROMANOVICH / TAMBI ALEKSANDR ALEKSEEVICH et al. | European Patent Office | 2022

Free access

Application : Wood parquet

British Library Online Contents | 1998

Application: Wood parquet

Online Contents | 1998