University of Cambridge > Talks.cam > Cosmology Lunch > Bootstrapping Inflationary Fluctuations

  Browse A-Z

Log in

Googledetails Microsoftdetails

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

Bootstrapping Inflationary Fluctuations

Download to your calendar using vCal

If you have a question about this talk, please contact Sadra Jazayeri .

In flat space, four point scattering amplitudes at weak coupling can be fully determined from Lorentz symmetry, unitarity and causality. The resulting scattering amplitude depends on model details only through coupling constants and the particle content of the theory. I will show how the analogous story works in the case of inflationary fluctuations. We found explicit expressions for inflationary three and four-point functions, whose shapes depend on the field content of the theory, and do not depend on the specific inflationary model, as long as the fluctuations minimally break de Sitter symmetry. This ``cosmological bootstrap” is a first step towards classifying all possible shapes of primordial non-gaussianity, which can be searched for in experimental data.

This talk is part of the Cosmology Lunch series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Room 6.12a, Malet Place Engineering Building, UCL Part III Seminars Sir Arthur Marshall Meeting Room, Engineering Department, Trumpington Street, Cambridge. CB1 2PZ.

Other talks

Online Causal Inference Seminar Market Failure, Organ Shortage, Pandemic and Climate Change: The Architecture of Cooperation Title TBC Toward affordable preventive healthcare Title to be confirmed Novel neuroimaging methods in Lewy body dementia
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity