# PCT Theorem for the Operator Product Expansion in Curved Spacetime

@article{Hollands2002PCTTF, title={PCT Theorem for the Operator Product Expansion in Curved Spacetime}, author={Stefan Hollands}, journal={Communications in Mathematical Physics}, year={2002}, volume={244}, pages={209-244} }

We consider the operator product expansion for quantum field theories on general analytic 4-dimensional curved spacetimes within an axiomatic framework. We prove under certain general, model-independent assumptions that such an expansion necessarily has to be invariant under a simultaneous reversal of parity, time, and charge (PCT) in the following sense: The coefficients in the expansion of a product of fields on a curved spacetime with a given choice of time and space orientation are equal…

## 23 Citations

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