PIRSA:24020055

Video URL

https://pirsa.org/24020055

Infinite derivative gravity theories: UV completion, inflation and observables

Koshelev, A. (2024). Infinite derivative gravity theories: UV completion, inflation and observables. Perimeter Institute for Theoretical Physics. https://pirsa.org/24020055

Koshelev, Alexey. Infinite derivative gravity theories: UV completion, inflation and observables. Perimeter Institute for Theoretical Physics, Feb. 08, 2024, https://pirsa.org/24020055 

          @misc{ scivideos_PIRSA:24020055,
            doi = {10.48660/24020055},
            url = {https://pirsa.org/24020055},
            author = {Koshelev, Alexey},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Infinite derivative gravity theories: UV completion, inflation and observables},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2024},
            month = {feb},
            note = {PIRSA:24020055 see, \url{https://scivideos.org/pirsa/24020055}}
          }

Alexey Koshelev ShanghaiTech University

Talk numberPIRSA:24020055
DOI10.48660/24020055
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In my talk I will review motivation for and construction of an infinite derivative gravity. Especially a connection to the string field theory will be highlighted. Then I will demonstrate an exact embedding of the Starobinsky inflation in this construction. In final part I will speak about modifications to observable compared to local models of inflation: spectral indexes, tensor/to scalar ratio, shapes of non-gaussianities and related parameters, gravitational waves production.

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