期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2013)151
关键词
Cosmology of Theories beyond the SM; Space-Time Symmetries; Renormalization Regularization and Renormalons
资金
- European Research Council (ERC STG) [279617]
- Stanford ITP
- U.S. Department of Energy [DE-AC02-76SF00515]
- STFC [ST/G000581/1, ST/J000434/1] Funding Source: UKRI
In this paper, we prove that the superhorizon conservation of the curvature perturbation zeta in single-field inflation holds as an operator statement. This implies that all zeta-correlators are time independent at all orders in the loop expansion. Our result follows directly from locality and diffeomorphism invariance of the underlying theory. We also explore the relationship between the conservation of zeta, the single-field consistency relation and the renormalization of composite operators.
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