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Renormalised perturbation theory of ordered systems

Hagston, W. E. and Lambert, Colin (1981) Renormalised perturbation theory of ordered systems. Journal of Physics -London- a Mathematical and General, 14 (8). pp. 1915-1923. ISSN 0305-4470

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Abstract

Introduces a new self-consistent summation procedure for the analysis of Feynman-Dyson perturbation series and demonstrate how a self-consistent expression for the self-energies of an interacting system may be obtained. The authors obtain the simplest self-consistent solution to the problem of an interacting many fermion system exhibiting long-range order, characterised by the existence of anomalous propagators, in which correlation effects not described by the Hartree-Fock-Gorkov approximation are important.

Item Type: Article
Journal or Publication Title: Journal of Physics -London- a Mathematical and General
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 58054
Deposited By: ep_importer_pure
Deposited On: 22 Oct 2012 10:55
Refereed?: Yes
Published?: Published
Last Modified: 10 Apr 2014 00:06
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/58054

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