[institut] [phys4phys] Seminar grupe za gravitaciju, cestice i polja

[Marija Dimitrijevic Ciric]

Dear colleagues,

You are cordially invited to the online seminar of the Group for 
Gravity, Particles and Fields, which will be held on Friday, 29 January 
2021 at 11:00 via the BigBlueButton platform (link is given below). The 
talk entitled

Gauge symmetry of the 3BF theory for a generic Lie 3-group


will be given by Tijana Radenkovic (Group for Gravity, Particles and 
Fields, Institute of Physics Belgrade).

Abstract: The higher category theory can be employed to generalize the 
BF action to the so-called 3BF action, by passing from the notion of a 
gauge group to the notion of a gauge 3-group. In this work we determine 
the full gauge symmetry of the 3BF action. To that end, the complete 
Hamiltonian analysis of the 3BF action for a general Lie 3-group is 
performed, by using the Dirac procedure. This analysis is the first step 
towards a canonical quantization of a 3BF theory. This is an important 
stepping-stone for the quantization of the complete Standard Model of 
elementary particles coupled to Einstein-Cartan gravity, formulated as a 
3BF action with suitable simplicity constraints. We show that the 
resulting gauge symmetry group consists of the already familiar G-, H-, 
and L-gauge transformations, as well as additional M- and N-gauge 
transformations, which have not been discussed in the existing 
literature.

ArXiv ePrint: 2101.04049

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Time: Jan 29, 2021 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