Joint cosmology seminar at Tufts online:

Tuesday, April 27, 2021, 2:30 pm
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Tufts University

On Vacuum Transitions and the String Landscape

Fernando Quevedo
Cambridge and ICTP


Motivated by the string theory landscape we revisit vacuum transitions in gravitational EFTs following the Hamiltonian formalism and compare with the standard Euclidean approach. Several aspects are emphasised such as up-tunneling transitions, including Minkowski to de Sitter, and the curvature of space after tunnelling.