Ring contribution to the neutral two-dimensional fermi gas

Usama Gh Al-Khawaja, Humam B. Ghassib

Research output: Contribution to journalArticlepeer-review


This paper concentrates on the hitherto ignored long-range correlations in neutral two-dimensional Fermi systems, embodied in the ring diagrams or polarization insertions. It turns out that their effects are crucial regarding the quasiparticle lifetime, but marginal so far as the effective mass and single-particle energies are concerned. It also sheds some light on the effective interaction due to these correlations.

Original languageEnglish
Pages (from-to)2653-2654
Number of pages2
JournalCzechoslovak Journal of Physics
Issue numberSUPPL. 5
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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