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Scale anomalies in nonrelativistic field theories in 2+1 dimensions

Journal Article · · Physical Review, D (Particles Fields); (United States)
;  [1]
  1. Institute of Physics, University of Oslo, N-0316 Oslo (Norway)
From the one-loop effective potential for a gas of nonrelativistic bosons in two spatial dimensions interacting via a [delta]-function potential at zero temperature and finite chemical potential, the anomaly of the energy-momentum tensor follows directly. It is also similarly derived when the bosons have an additional Chern-Simons interaction. In the special case of anyons, the scale anomaly vanishes to one-loop order in the effective potential and also to second order in the statistical angle.
OSTI ID:
5020746
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:8; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English