Data di Pubblicazione:
2017
Citazione:
Self-consistent green’s function approaches / C. Barbieri, A. Carbone (LECTURE NOTES IN PHYSICS). - In: An Advanced Course in Computational Nuclear Physics : Bridging the Scales from Quarks to Neutron Stars / [a cura di] M. Hjorth-Jensen, M.P. Lombardo, U. van Kolck. - [s.l] : Springer Verlag, 2017. - ISBN 9783319533353. - pp. 571-644 [10.1007/978-3-319-53336-0_11]
Abstract:
We present the fundamental techniques and working equations of many-body Green’s function theory for calculating ground state properties and the spectral strength. Green’s function methods closely relate to other polynomial scaling approaches discussed in Chaps. 8 and 10. However, here we aim directly at a global view of the many-fermion structure. We derive the working equations for calculating many-body propagators, using both the Algebraic Diagrammatic Construction technique and the self-consistent formalism at finite temperature. Their implementation is discussed, as well as the inclusion of three-nucleon interactions. The self-consistency feature is essential to guarantee thermodynamic consistency. The pairing and neutron matter models introduced in previous chapters are solved and compared with the other methods in this book.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
Spectral Function; Dyson Equation; Symmetric Nuclear Matter; Infinite Matter; Pure Neutron Matter
Elenco autori:
C. Barbieri, A. Carbone
Link alla scheda completa:
Titolo del libro:
An Advanced Course in Computational Nuclear Physics : Bridging the Scales from Quarks to Neutron Stars