Topological terms induced by finite temperature and density fluctuations

Details Topological terms induced by finite temperature and density fluctuations Topological terms induced by finite temperature and density fluctuations

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..57.1102n&link_type=abstract

Physical Review Letters, Volume 57, Issue 9, September 1, 1986, pp.1102-1105

Mathematics

Logic

15

General Properties Of Perturbation Theory

Scientific paper

In (3+1)-dimensional finite-temperature and -density SU(2) gauge theories with left-handed fermions, the three-dimensional Chern-Simons term (topological mass) can be induced by radiative corrections. This result is derived by use of a family's index theorem which also implies that in many other quantum field theories various additional lower-dimensional topological terms can be induced. In the high-temperature limit these terms dominate the partition function, which suggests applications to early-Universe cosmology.

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