20/03/2013, 11:30 — 12:30 — Room P3.10, Mathematics Building
Aleksandar Mikovic, Univ. Lusófona
Categorification of Spin Foam Models
We briefly review spin foam state sums for triangulated
manifolds and motivate the introduction of state sums based on
2-groups. We describe 2-BF gauge theories and the construction of
the corresponding path integrals (state sums) in the case of
Poincaré 2-group.
References
- J. F. Martins and A. Mikovic, Lie crossed modules and
gauge-invariant actions for 2-BF theories, Adv. Theor. Math.
Phys. 15 (2011) 1059,
arxiv:1006.0903
- A. Mikovic and M. Vojinovic, Poincaré 2-group and quantum
gravity, Class. Quant. Grav. 291 (2012) 165003, arxiv:1110.4694
Room 3.10 is confirmed


