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

Official URL: http://dx.doi.org/10.1088/0305-4470/14/8/016

## 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 |
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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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