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hep-th2024
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…
hep-th2024
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…