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Article overview
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Gapless Hartree-Fock Resummation Scheme for the O(N) Model | Yu. B. Ivanov
; F. Riek
; J. Knoll
; | Date: |
16 Feb 2005 | Journal: | Phys.Rev. D71 (2005) 105016 | Subject: | High Energy Physics - Phenomenology; Other | hep-ph cond-mat.other nucl-th | Affiliation: | 1 and 2), F. Riek , J. Knoll ( Kurchatov Institute, Darmstadt, GSI | Abstract: | A modified selfconsistent Hartree-Fock approximation to the lambda*phi^4 theory with spontaneously broken O(N) symmetry is proposed. It preserves all the desirable features, like conservation laws and thermodynamic consistency, of the selfconsistent Dyson scheme generated from a 2PI functional, also known as the Phi-derivable scheme, while simultaneously respecting the Nambu-Goldstone theorem in the chiral-symmetry broken phase. Various approximate resummation schemes are discussed. | Source: | arXiv, hep-ph/0502146 | Services: | Forum | Review | PDF | Favorites |
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