Self-Consistent Green’s Function Calculation of the Nucleon Mean Free Path
نویسندگان
چکیده
منابع مشابه
Self-consistent relativistic calculation of nucleon mean free path.
We present a fully self-consistent and relativistic calculation of the nucleon mean free path in nuclear matter and finite nuclei. Starting from the Bonn potential, the Dirac-Brueckner-Hartree-Fock results for nuclear matter are parametrized in terms of an effective σ-ω Lagrangian suitable for the relativistic density-dependent Hartree-Fock (RDHF) approximation. The nucleon mean free path in nu...
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The extension of Green's functions techniques to the complex energy plane provides access to fully dressed quasiparticle properties from a microscopic perspective. Using self-consistent ladder self-energies, we find both spectra and lifetimes of such quasiparticles in nuclear matter. With a consistent choice of the group velocity, the nucleon mean-free path can be computed. Our results indicate...
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Transport coefficients provide a unique insight into the near-equilibrium behavior of quantum many-body systems. The mean-free path, λ, of a particle within a dense medium is a basic transport coefficient, at the basis of several theoretical concepts and closely related to experimentally measured quantities. Green’s functions techniques are particularly well suited to study such transport prope...
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V. M. Silkin, E. V. Chulkov, and P. M. Echenique Donostia International Physics Center (DIPC) and Centro Mixto CSIC-UPV/EHU, Paseo de Manuel Lardizabal, 4, 20018 San Sebastián/Donostia, Basque Country, Spain Departamento de Fı́sica de Materiales, Facultad de Ciencias Quı́micas, UPV/EHU, Apdo. 1072, 20080 San Sebastián/Donostia, Basque Country, Spain ~Received 14 July 2003; published 21 November 2...
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We present a calculation of nuclear matter which goes beyond the usual quasiparticle approximation in that it includes part of the off-shell dependence of the self-energy in the self-consistent solution of the single-particle spectrum. The spectral function is separated in contributions for energies above and below the chemical potential. For holes we approximate the spectral function for energ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2012
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.108.012501