Journal of Low Temperature Physics

, Volume 5, Issue 1, pp 91–105 | Cite as

The asymptotic behavior of the order parameter-order parameter correlation function for charged superfluid systems

  • F. de Pasquale
  • P. Tombesi
Article
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Abstract

By means of a suitable set of Ward Identities we investigate the structure of the order parameter-order parameter correlation function for charged boson and fermion systems with breakdown of gauge symmetry. As a consequence of the long-range behavior of the Coulomb potential, the Goldstone mode is pushed up to the plasma frequency but the order parameter-order parameter correlation function still exhibits a singularity atk=0. These results are derived for temperatures at which analyticity aroundk=0, ω=0 of vertices involved in the Ward Identities is verified.

Keywords

Correlation Function Asymptotic Behavior Magnetic Material Gauge Symmetry Plasma Frequency 
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Copyright information

© Plenum Publishing Corporation 1971

Authors and Affiliations

  • F. de Pasquale
    • 1
    • 2
  • P. Tombesi
    • 1
    • 2
  1. 1.Istituto di Fisica, Facoltà di IngegneriaUniversità di RomaRomeItaly
  2. 2.Gruppo Nazionale di Struttura della Materia del Consiglio Nazionale delle RicercheRomeItaly

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