Anomalous but consistent gravity in two dimensions

Details Anomalous but consistent gravity in two dimensions Anomalous but consistent gravity in two dimensions

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..34.2292l&link_type=abstract

Physical Review D (Particles and Fields), Volume 34, Issue 8, 15 October 1986, pp.2292-2297

Physics

13

Lorentz And Poincare Invariance

Scientific paper

Two-dimensional gravity coupled to chiral fermions possesses a Lorentz anomaly, but it can be made consistent by allowing the gauge degree of freedom to be physical at the quantum level. The theory has massless excitations or a ghost particle depending on the sign of a counterterm. The possibility of adding the Wess-Zumino term in order to cancel the anomaly is also discussed.

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