Juan Maldacena 2026-11-05
Juan Maldacena calculated three-point correlations of primordial scalar and tensor fluctuations in single-field cosmic inflation. His 2003 analysis gave explicit leading slow-roll predictions for primordial non-Gaussianity and showed that certain squeezed limits are fixed by the scale dependence of the two-point spectrum.[ref]
A squeezed bispectrum configuration compares one long wavelength with two short ones. In the applicable single-field regime, the long fluctuation acts locally as a coordinate rescaling, producing the single-field inflation squeezed-limit consistency relation. The statement depends on the inflationary model and limiting assumptions, rather than applying to every primordial three-point function.