Seminars

If not explicitly stated otherwise, seminars take place on Wednesdays, at 16:00 in the lecture room A 945 (Troja, building A, 9th floor).

doc. RNDr. Martin Čížek, Ph.D., Chemical reactions in early Universe and first molecules

at 16:00

Friday’s IPNP Coffee Club, room 945, November 8th, 2019, at 13:30

I will review shortly modelling of composition of the early Universe after recombination. I will list the relevant ionic, atomic and molecular species present in this era, show important reactions among them and give some information on relevance of such results for the structure of observable Universe and possible observable quantities in forthcoming missions.

Tomas Kadavy, IPNP, Operator Product Expansion of Green Functions of Chiral Currents

at 16:00
Friday’s IPNP Coffee Club, room 945, November 8th, 2019, at 13:30
In this talk, I will try to show you how the operator product expansion (OPE) allows us to study high-energy behavior of Green functions of chiral currents. In detail, I will try to explain:
– how the Green functions can be, within the framework of OPE, rewritten in terms of (local) QCD condensates,
– how the Fock-Schwinger gauge is of essential importance and
– how important is to consider an effective propagation of local QCD condensates through the non-local ones.