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The University of Southampton
STAG Research Centre

Gravity seminar - Gerald Dunne [ONLINE] Seminar

16 February 2023
Online seminar

For more information regarding this seminar, please email Fabian Gittins at .

Event details

Title: Decoding the Path Integral: Resurgence and Extreme Physics

Abstract: There are several important conceptual and computational questions concerning path integrals for physical systems under extreme conditions, which have recently been approached from new perspectives motivated by "resurgent asymptotics", a novel mathematical formalism that seeks to unify perturbative and non-perturbative physics. This talk will review the basic ideas behind the connections between resurgent asymptotics and physics, starting from the work of Airy and Stokes, and the development of trans-series by Ecalle. I will describe several recent applications in quantum mechanics and quantum field theory, where the main motivation is to develop a deeper understanding of field theoretic path integrals directly from a saddle point Lefschetz thimble decomposition, and also by reconstruction from perturbative information.

Speaker information

Gerald Dunne , Connecticut University.

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