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arXiv · 1801.01728

A rederivation of the conformal anomaly for spin-1/2

Hadi Godazgar·Hermann Nicolai
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Abstract

We rederive the conformal anomaly for spin-1/2 fermions by a genuine Feynman graph calculation, which has not been available so far. Although our calculation merely confirms a result that has been known for a long time, the derivation is new, and thus furnishes a method to investigate more complicated cases (in particular concerning the significance of the quantum trace of the stress tensor in non-conformal theories) where there remain several outstanding and unresolved issues.

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Hadi Godazgar, Hermann Nicolai. 2018-01-05. A rederivation of the conformal anomaly for spin-1/2. https://doi.org/10.1088/1361-6382%2Faaba97

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