Tunnelling amplitudes through localised external potentials from Feynman diagram summation

Abstract Currently there is no general theory of quantum tunnelling of a particle through a potential barrier which is compatible with QFT. We present a complete calculation of tunnelling amplitudes for a scalar field for some simple potentials using quantum field-theoretic methods. Using the pertur...

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Bibliographic Details
Main Authors: Rosemary Zielinski, Cédric Simenel, Patrick McGlynn
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-13332-1
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