Time: 11. March 2016
Place: Institute of Physics
Title: The Wick rotation and the effective action in field theory and gravity
Using the results in quantum field theory, we will discuss a reformulation of the Wick rotation which admits a generalization to diffeomorphism-invariant theories, in particular to gravitation. This generalization provides a concrete way to establish a relationship between theories with Euclidean and Lorentzian signatures in the framework of the effective action, both in field theory and quantum gravity.