Alternate definitions of loop corrections to the primordial power spectra

Shun-Pei Miao, Sohyun Park

研究成果: Article

8 引文 (Scopus)

摘要

We consider two different definitions for loop corrections to the primordial power spectra. One of these is to simply correct the mode functions in the tree order relations using the linearized effective field equations. The second definition involves the spatial Fourier transform of the two-point correlator. Although the two definitions agree at tree order, we show that they disagree at one loop using the Schwinger-Keldysh formalism, so there are at least two plausible ways of loop correcting the tree order result. We discuss the advantages and disadvantages of each.

原文English
文章編號064053
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
89
發行號6
DOIs
出版狀態Published - 2014 三月 24

指紋

power spectra
correlators
formalism

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

引用此文

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