13 citations · 32 across the 6 of their papers we have counts for
7 papers
A Compact Story of Positivity in de Sitter
Priyesh Chakraborty, Timothy Cohen, Daniel Green +1
Recent developments have yielded significant progress towards systematically understanding loop corrections to de Sitter (dS) correlators. In close analogy with physics in Anti-de…
Operator Origin of Anomalous Dimensions in de Sitter Space
Timothy Cohen, Daniel Green, Yiwen Huang
The late time limit of the power spectrum for heavy (principal series) fields in de Sitter space yields a series of polynomial terms with complex scaling dimensions. Such scaling b…
A Goldstone Boson Equivalence for Inflation
Daniel Green, Kshitij Gupta, Yiwen Huang
The effective field theory of single-field inflation characterizes the inflationary epoch in terms of a pattern of symmetry breaking. An operator acquires a time-dependent vacuum e…
Positivity from Cosmological Correlators
Daniel Green, Yiwen Huang, Chia-Hsien Shen +1
Effective field theories in flat space and in anti-de Sitter space are constrained by causality and unitarity, often in the form of positivity bounds. Similar bounds have been hard…
Inflationary Adler Conditions
Daniel Green, Yiwen Huang, Chia-Hsien Shen
We derive a new soft theorem that corresponds to the spontaneous breaking of Lorentz boosts. This is motivated by the dynamics of inflation in the sub-horizon (flat-space) limit, w…
A Flat Space Analogue for the Quantum Origin of Structure
Daniel Green, Yiwen Huang
The analytic structure of non-Gaussian correlators in inflationary cosmologies has recently been proposed as a test of the quantum origin of structure in the universe. To further u…
The observational constraints on the flat CDM models
Olga Avsajanishvili, Yiwen Huang, Lado Samushia +1
Most dark energy models have the CDM as their limit, and if future observations constrain our universe to be close to CDM Bayesian arguments about the evidence and the fine-t…