The power of perturbation theory

The power of perturbation theory

Abstract We study quantum mechanical systems with a discrete spectrum. We show that the asymptotic series associated to certain paths of steepest-descent (Lefschetz thimbles) are Borel resummable to the full result. Using a geometrical approach based on the PicardLefschetz theory we characterize the...

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Bibliographic Details
Main Authors: Marco Serone, Gabriele Spada, Giovanni Villadoro
Format: Article
Language:English
Published: SpringerOpen 2017-05-01
Series:Journal of High Energy Physics
Subjects:
Nonperturbative Effects
Field Theories in Lower Dimensions
Resummation
Online Access:http://link.springer.com/article/10.1007/JHEP05(2017)056

Internet

http://link.springer.com/article/10.1007/JHEP05(2017)056

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