A General PCT Theorem for the Operator Product Expansion in Curved Spacetime

Details A General PCT Theorem for the Operator Product Expansion in Curved Spacetime A General PCT Theorem for the Operator Product Expansion in Curved Spacetime

2002-12-06

arxiv.org/abs/gr-qc/0212028v1

Commun.Math.Phys. 244 (2004) 209-244

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

40 pages, latex, no figures

Scientific paper

10.1007/s00220-003-0991-5

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 (modulo complex conjugation) to the coefficients for the product of the corresponding charge conjugate fields on the spacetime with the opposite time and space orientation. We propose that this result should be viewed as a replacement of the usual PCT theorem in Minkowski spacetime, at least in as far as the algebraic structure of the quantum fields at short distances is concerned.

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