Derivation of Bessel function closed-form solutions in zero dimensional φ4-field theory
The integral ∫−∞∞e−x2−gx4dx is used as an introductory learning tool in the study of Quantum Field Theory and path integrals. Typically, it is analyzed via perturbation theory. Closed-form solutions have been quoted for which I could not find any derivation. Using a simple and elegant transformation...
Main Author: | Ranjiva M. Munasinghe |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2023-02-01
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Series: | Heliyon |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023003754 |
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