# The Lorentz Anomaly via Operator Product Expansion

@article{Fredenhagen2014TheLA, title={The Lorentz Anomaly via Operator Product Expansion}, author={Stefan Fredenhagen and Jens Hoppe and Mariusz Hynek}, journal={Journal of Mathematical Physics}, year={2014}, volume={56}, pages={102302} }

The emergence of a critical dimension is one of the most striking features of string theory. One way to obtain it is by demanding closure of the Lorentz algebra in the light-cone gauge quantisation, as discovered for bosonic strings more than forty years ago. We give a detailed derivation of this classical result based on the operator product expansion on the Lorentzian world-sheet.

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