Home
For authors
Submission status

Current
Archive
Archive (English)
   Volumes 21-40
   Volumes 1-20
   Volumes 41-62
      Volume 62
      Volume 61
      Volume 60
      Volume 59
      Volume 58
      Volume 57
      Volume 56
      Volume 55
      Volume 54
      Volume 53
      Volume 52
      Volume 51
      Volume 50
      Volume 49
      Volume 48
      Volume 47
      Volume 46
      Volume 45
      Volume 44
      Volume 43
      Volume 42
      Volume 41
Search
VOLUME 58 (1993) | ISSUE 9 | PAGE 734
Singularity in the quasiparticle interaction function in a 2D Fermi gas
The interaction function of Landau quasiparticles, /(ρ, p'), of a 2D Fermi gas is calculated in second-order perturbation theory. This function has a square-root singularity near the Fermi surface when the momenta ρ and p' are nearly parallel. Although this singularity does not disrupt the Fermi-liquid picture in the 2D case, it does lead to some nontrivial corrections to thermodynamic properties and to the zero sound velocity.