Abstract
A Fortran code for solving the KadanoffBaym equations for a homogeneous fermion system is presented. These are a class of quantum kinetic equations the solutions of which are twotime Green (correlation) functions, which carry both statistical (orbital occupation distributions) and dynamical (orbital energies and widths) information about the system away from equilibrium. In this program, the system's initial state is assumed to be uncorrelated. As examples of applications, two separate situations involving equilibration (thermalization) are considered: the first one models an electron plasma in an excited semiconductor, and the other models nuclear heavyion collisions. The most timeconsuming part of the program is the computation of the convolutions of various combinations of the Green functions. This task is efficiently performed by the use of Fast Fourier Transform. As summary output, the particle density, energy densities, and the quadrupole moment of the distribution are displayed. The program can easily be modified such that the user may use any initial distribution of fermions.
Original language  English (US) 

Pages (fromto)  123142 
Number of pages  20 
Journal  Computer Physics Communications 
Volume  123 
Issue number  13 
DOIs  
State  Published  Dec 1999 
Keywords
 KadanoffBaym equations
 Momentum relaxation
 Nonequilibrium Green functions
 Nuclear reactions
 Quantum transport
 Semiconductor transport
ASJC Scopus subject areas
 Hardware and Architecture
 General Physics and Astronomy
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A Fortran code for solving the Kadanoff–Baym equations for a homogeneous fermion system
Köhler, H. S. (Contributor), Kwong, N. (Contributor) & Yousif, H. A. (Contributor), Mendeley Data, Dec 1 1999
DOI: 10.17632/rcv57f22bc.1, https://data.mendeley.com/datasets/rcv57f22bc
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