[institut] [phys4phys] Next SEENET-MTP online seminar: Calin Iuliu Lazaroiu, 15 June 2022 at 17:00

[SEENET-MTP Office]

Dear colleagues,

It’s our pleasure to inform you that the next SEENET-MTP online seminar:

*Dynamical RG flows and universality in classical multifield 
cosmological models*
*Calin Iuliu Lazaroiu* (/Department of Theoretical Physics, IFIN-HH, 
Bucharest-Magurele, Romania/)

will be held on *Wednesday, 15 June 2022, 17:00 CET*. The Zoom link will 
be sent to registered participants and SEENET-MTP members.

*Abstract:* "In this talk I will give a study of the scale symmetries 
and scale expansions in classical multifield cosmological models and 
their UV and IR limits, showing that these reproduce respectively the 
geodesic flow of the scalar manifold and a reparameterization of the 
gradient flow of the scalar potential on that manifold. Using the 
appropriate notion of IR universality classes, I show that the IR 
dynamics of two-field models with complete scalar field metric can be 
described to first nontrivial order by that of two-field models with 
metrics of constant Gaussian curvature. I illustrate this with results 
on the first order IR approximant of tame two-field models, whose scalar 
manifold is a hyperbolizable complete non-compact and oriented Riemann 
surface of finite type and whose scalar potential admits a smooth and 
Morse extension to the Freudenthal compactification of that surface."

More information about the SEENET-MTP seminars and a registration form 
for non-members is available at the website of the Seminar, 
https://seminar.seenet-mtp.info.

We would kindly ask you to share this announcement with your colleagues.

Sincerely,
SEENET-MTP Office
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