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Symmetries and Loops in Inflation
Valentin Assassi, Daniel Baumann, Daniel Green
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-c…
On the Equivalence of Barrier Crossing, Peak-Background Split, and Local Biasing
Simone Ferraro, Kendrick M. Smith, Daniel Green +1
Several, apparently distinct, formalisms exist in the literature for predicting the clustering of dark matter halos. It has been noticed on a case-by-case basis that the prediction…
Collective Symmetry Breaking and Resonant Non-Gaussianity
Siavosh R. Behbahani, Daniel Green
We study inflationary models that produce a nearly scale-invariant power spectrum while breaking scale invariance significantly in the bispectrum. Under most circumstances, such mo…
Bounds on SCFTs from Conformal Perturbation Theory
Daniel Green, David Shih
The operator product expansion (OPE) in 4d (super)conformal field theory is of broad interest, for both formal and phenomenological applications. In this paper, we use conformal pe…
On Soft Limits of Inflationary Correlation Functions
Valentin Assassi, Daniel Baumann, Daniel Green
Soft limits of inflationary correlation functions are both observationally relevant and theoretically robust. Various theorems can be proven about them that are insensitive to deta…