2006/11/07 by Helio V. Fagundes, Fagundes, Helio V., T. Vargas +2
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc #hep-th
paper · pdf · doi:10.48550/arxiv.gr-qc/0611048
Contribution to the XXVII National Meeting on the Physics of Particles and Fields (Aguas de Lindoia, Brazil, Sep. 2006). Revisions: Equation (10) corrected; First paragraph of Sec. 2 reworded; Ref. [12] modified
arxiv created 2006/12/18 · arxiv updated 2009/12/01
In order to include nontrivial spatial topologies in the problem of quantum creation of a universe, it seems to be necessary to generalize the sum over compact, smooth 4-manifolds to a sum over finite-volume, compact 4-orbifolds. We consider in detail the case of a 4-spherical orbifold with a cone-point singularity. This allows for the inclusion of a nontrivial topology in the semiclassical path integral approach to quantum cosmology, in the context of a Robertson-Walker minisuperspace.