Statistical sum in the CFT driven cosmology
arXiv:1012.1896 · doi:10.1088/1475-7516/2011/04/036
Abstract
The path integration technique recently developed for the statistical sum of the microcanonical ensemble in cosmology is applied to the calculation of the one-loop preexponential factor in the cosmological model generated by a conformal field theory with a large number of quantum species -- the model of initial conditions possibly related to the resolution of the cosmological constant and landscape problems. The result is obtained for the family of background cosmological instantons with one oscillation of the FRW scale factor. The magnitude of the prefactor is analytically and numerically estimated for fields of various spins conformally coupled to gravity, which justifies the validity of semiclassical expansion for this family of cosmological instantons.
LaTeX, 10 pages, 2 figures, comparison of setting the problem and results with those of hep-th/0010232 is included, numerics is improved, new references are added
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Cited by in corpus (4)
- Origin of inflation in CFT driven cosmology: -gravity and non-minimally coupled inflaton models
- The path integral for the statistical sum of the microcanonical ensemble in cosmology
- On the functional determinant of a special operator with a zero mode in cosmology
- Monodromies and functional determinants in the CFT driven quantum cosmology