2008/03/31 by Shun-Pei Miao, S P Miao, R. P. Woodard +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.1088/0264-9381/25/14/145009
published as Class.Quant.Grav.25:145009,2008 · 39 pages, no figuire.(1) New version has clarified the ultimate motivation by adding sentences to the abstract and to the penultimate paragraph of the introduction. (2) By combining a number of references and equations we have managed to reduce the length by 2 pages
openalex publication_date 2008/06/24 · arxiv created 2008/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We present a relatively simple operator formalism which reproduces the leading infrared logarithm of the one-loop quantum gravitational correction to the fermion mode function on a locally de Sitter background. This rule may serve as the basis for an eventual stochastic formulation of quantum gravity during inflation. Such a formalism would not only effect a vast simplification in obtaining the leading powers of ln( a ) at fixed loop orders, but also permit us to sum the series of leading logarithms. A potentially important point is that our rule does not seem to be consistent with any simple infrared truncation of the fields. Our analysis also highlights the importance of spin as a gravitational interaction that persists even when kinetic energy has redshifted to zero.