[hep-th] seminar grupe za cestice i gravitaciju

[Branislav Cvetkovic]

Postovane kolege,

u petak 26.04. u 11 h na Institutu za fiziku u sali 300, Aleksandar 
Mikovic sa Univerziteta u Lusofona u Lisabonu,
ce odrzati seminar pod naslovom "Spin cube models of quantum gravity". 
Apstrakt vam prosledjujem u nastavku.

                                                             Pozdrav 
Branislav


Abstract: We describe spin cube models of quantum gravity which are 
based on Poincare 2-group representations labeled by positive real 
numbers. Depending on how one imposes the General Relativity 
constraints, one can obtain a spin foam model with the edge-length 
constraints or a Regge model. The corresponding effective actions have 
classical limits which are given by the Regge action.




-- 
Institute of Physics Belgrade
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