Topic: Building intuition for spectral and statistical functions.
Guiding questions:
How (exactly) is the spectral function in nonequilibrium QFT related to the spectral function in the Kählen-Lehmann representation?
When do fluctuation-dissipation-relations hold and why?
How are quantum states related to spectral and statistical functions?
How can spectral and statistical functions be measured?
What comes beyond spectral and statistical functions?
Venue: SR, Institut für Theoretische Physik, Philosophenweg 16, 69120 Heidelberg
References:
Definition of spectral and statistical functions in nonequilibrium field theory:
https://arxiv.org/pdf/1503.02907
Equations (2.96) and (2.97)
If you are interested in joining, please enter your name in the following list, so we know how much pizza to order:
https://docs.google.com/spreadsheets/d/1zH1IpnDAAT_fm0IPwbKvPPYbVQiSiglDfoaYbA_2TNk/edit?usp=sharing
Schedule:
16:30 – 17:30 discussion
17:30 pizza & drinks
_____________________________________________________________________________________________