MG14 - Talk detail |
Participant |
Hack, Thomas-Paul | |||||||
Institution |
University of Leipzig, Institute for Theoretical Physics - Postfach 100 920 - Leipzig - Saxony - Germany | |||||||
Session |
QF2 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
An Analytic Regularisation Scheme On Curved Spacetimes | |||||
Coauthors | ||||||||
Abstract |
We develop a renormalisation scheme for timeordered products in interacting field theories on curved spacetimes which consists of an analytic regularisation of Feynman amplitudes and a minimal subtraction of the resulting pole parts. This scheme is directly applicable to spacetimes with Lorentzian signature, manifestly generally covariant, invariant under any spacetime isometries present and constructed to all orders in perturbation theory. Moreover, the scheme captures correctly the nongeometric statedependent contribution of Feynman amplitudes and it is wellsuited for practical computations, including momentum space computations in cosmological spacetimes. |
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