ar X iv : h ep - t h / 06 10 16 8 v 1 1 4 O ct 2 00 6 Local conformal symmetry and its fate at quantum level 1
نویسنده
چکیده
The purpose of this article is to present a short review of local conformal symmetry in curved 4d space-time. Furthermore we discuss the conformal anomaly and anomaly-induced effective actions. Despite the conformal symmetry is always broken at quantum level, it may be a basis of useful and interesting approximations for investigating quantum corrections.
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