Journal article

Publication year: 1987

Pages: 539-552

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 461

Issue number: 3-4

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(87)90408-8

Publisher: Elsevier

Abstract: 

We present a new method for the solution of the coupled differential equations which have to be solved in various field-theory models. For the solution of the eigenvalue problem a modified version of the imaginary time-step method is applied. Using this new scheme we prevent the solution from running into the negative-energy sea. For the boson fields we carry out a time integration with an additional damping term which forces the field to converge against the static solution. Some results are given for the Walecka model and the Friedberg-Lee model.

Harvard Citation style: Post, U., Kunz, J. and Mosel, U. (1987) A new numerical method to solve non-linear coupled differential equations for various field theory models, Nuclear Physics A: Nuclear and Hadronic Physics, 461(3-4), pp. 539-552. https://doi.org/10.1016/0375-9474(87)90408-8

APA Citation style: Post, U., Kunz, J., & Mosel, U. (1987). A new numerical method to solve non-linear coupled differential equations for various field theory models. Nuclear Physics A: Nuclear and Hadronic Physics. 461(3-4), 539-552. https://doi.org/10.1016/0375-9474(87)90408-8