37 citations · 222 across the 16 of their papers we have counts for
6 papers · 1 filter
Categorical generalization of spinfoam models
Aleksandar Mikovic, Marko Vojinovic
We give a brief review of the problem of quantum gravity. After the discussion of the nonrenormalizability of general relativity, we briefly mention the main research directions wh…
Quantum Gravity as a Deformed Topological Quantum Field Theory
A. Mikovic
It is known that the Einstein-Hilbert action with a positive cosmological constant can be represented as a perturbation of the SO(4,1) BF theory by a symmetry-breaking term quadrat…
Quantum Field Theory of Open Spin Networks and New Spin Foam Models
A. Mikovic
We describe how a spin-foam state sum model can be reformulated as a quantum field theory of spin networks, such that the Feynman diagrams of that field theory are the spin-foam am…
Painleve III Equation and Bianchi VII_0 Model
N. Manojlovic, A. Mikovic
We examine the reduced phase space of the Bianchi VII_0 cosmological model, including the moduli sector. We show that the dynamics of the relevant sector of local degrees of freedo…
General Solution for Self-Gravitating Spherical Null Dust
A. Mikovic
We find the general solution of equations of motion for self-gravitating spherical null dust as a perturbative series in powers of the outgoing matter energy-momentum tensor, with…
Loop Corrections in the Spectrum of 2D Hawking Radiation
A. Mikovic, V. Radovanovic
We determine the one-loop and the two-loop back-reaction corrections in the spectrum of the Hawking radiation for the CGHS model of 2d dilaton gravity by evaluating the Bogoliubov…