[institut] [phys4phys] Group for Gravitation, Particle and Fields on-line seminar, Friday 4 February 2022

[Marija Dimitrijevic Ciric]

Dear colleagues,

You are cordially invited to the online seminar of the Group for 
Gravitation, Particles and Fields, which will be held on Friday, 4 
February 2022 at 11:00 via the BigBlueButton platform (link is given 
below).


The talk entitled

Phase transitions in matrix models on the truncated Heisenberg space

will be given by Dragan Prekrat (Faculty of Physics, University of 
Belgrade).

Abstract: The important generic problem with QFTs on noncommutative 
spaces is the UV/IR mixing of divergences which interferes with their 
renormalization. The Grosse-Wulkenhaar model solved this problem by 
introducing a harmonic oscillator term that can be interpreted as a 
coupling between the curvature and the field. In this talk, we will 
examine the success of this model from the phase transition point of 
view. We will show that renormalizable and nonrenormalizable versions of 
the 2D noncommutative phi4 model have different phase diagrams.
We will also consider the implications of the striped-phase shifting on 
the renormalization properties of other models.

arXiv:2104.00657 [hep-th]
arXiv:2002.05704 [hep-th]



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Time: February 4, 2022 11:00 Belgrade

https://gravityserver.ipb.ac.rs/b/mar-xoo-t1v-vwn

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Best regards,

Marija Dimitrijevic Ciric

University of Belgrade
Faculty of Physics
Studentski trg 12-16
11000 Belgrade
Serbia