39 citations · 400 across the 54 of their papers we have counts for
13 papers · 1 filter
Lie crossed modules and gauge-invariant actions for 2-BF theories
Joao Faria Martins, Aleksandar Mikovic
We generalize the BF theory action to the case of a general Lie crossed module , where and are non-abelian Lie groups. Our construction requires the existence of…
Spin Foam State Sums and Chern-Simons Theory
Aleksandar Mikovic, Joao Faria Martins
We review the spin foam state-sum invariants of 3-manifolds, and explain their relationship to manifold invariants coming from the Chern-Simons theory. We also explain the relation…
Quantum Gravity as a Broken Symmetry Phase of a BF Theory
Aleksandar Mikovic
We explain how General Relativity with a cosmological constant arises as a broken symmetry phase of a BF theory. In particular we show how to treat de Sitter and anti-de Sitter cas…
Spin Foam Models of String Theory
A. Mikovic
We review briefly the spin foam formalism for constructing path integrals for the BF and related theories. Then we describe how the path integral for the string theory on a group m…
Spin Foam Models of Quantum Gravity
A. Mikovic
We give a short review of the spin foam models of quantum gravity, with an emphasis on the Barret-Crane model. After explaining the shortcomings of the Barret-Crane model, we brief…
String Theory and Quantum Spin Networks
A. Mikovic
We propose an approach to formulating string theory in a curved spacetime, which is based on the connection between the states of the WZW model for the isometry group of a backgrou…