Conveners
Cosmological correlators
- Anna Tokareva (Hangzhou Institute for Advanced Study)
We construct and solve a complete system of differential equations for general tree-level inflation correlators with an arbitrary number of massive scalar exchanges and time-dependent couplings. Any massive tree correlators can be uniquely fixed by solving this system of equations with appropriate boundary conditions. We take a hybrid approach to solve this system, using the differential...
The conserved currents three-point correlators have broad applications in several directions, including the conformal field theories, early time cosmology and quantum gravity through AdS/CFT correspondence. In this talk, I will explain the perturbative computations to the conserved current three-point correlators to the subleading order in the large N expansion. The techincal chanllenge...
In models of inflation with multiple scalar fields, the inflaton describes a curve in the internal space spanned by the fields. When this curve deviates strongly from a geodesic, interesting observational signatures arise, including enhanced fluctuations and peculiar non-Gaussianities. In this talk I will review the application of effective field theory methods to this class of models, before...
