A new picture of quantum tunneling in the real-time path integral from Lefschetz thimble calculations

Abstract It is well known that quantum tunneling can be described by instantons in the imaginary-time path integral formalism. However, its description in the real-time path integral formalism has been elusive. Here we establish a statement that quantum tunneling can be characterized in general by t...

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Bibliographic Details
Main Authors: Jun Nishimura, Katsuta Sakai, Atis Yosprakob
Format: Article
Language:English
Published: SpringerOpen 2023-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2023)110