Today:
Upcoming:
Optical Geometry and the Magnetoelectric Effect
Marcus Werner
Wed, 25 Sep 2019, 11:00
TBD
Abbas Askar (Lund)
Thu, 26 Sep 2019, 11:00
TBD
Paola Pinilla
Fri, 27 Sep 2019, 15:00
TBD
Ross Church (Lund Observatory)
Thu, 10 Oct 2019, 11:00

Systematic expansion of tunneling rates (PRETALK for students at 15:30 h)

Bjoern Garbrecht , Technische Universität München
I will review the theory of tunneling in quantum mechanics and field theory to one-loop order. Then, I will address how to systematically go beyond this approximation in an expansion based on Green's functions. One phenomenological relevance of this is that a consistent calculation of the tunneling rate in the Standard Model and beyond requires a one-loop resummation. Finally, the standard Euclideanized calculation of tunneling rates is related to a derivation based on real-time amplitudes.
Teilchen-Tee
23 May 2019, 16:15
Institut für Theoretische Physik, Phil12;SR106

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