A path integral is a formulation of quantum mechanics generalizing the action principle

the verdict

SUPPORTED

the evidence backs this

Recorded sources

4 sources for · 0 against

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Is it true that a path integral is a formulation of quantum mechanics generalizing the action principle?

Yes. The path integral formulation developed by Feynman provides an alternative approach to quantum mechanics based on the Lagrangian and the action principle.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked 4 Aug 2026

The analysis

The retrieved papers consistently treat the Feynman path integral as a foundational formulation of quantum mechanics rooted in the Lagrangian and action principle. The claim is well-supported by standard quantum mechanics literature references.

Evidence for · 4

The Feynman Path Integral: An Historical Slice

2003

Discusses Feynman's path integral formulation of quantum mechanics and its continuous-time regularization.

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Klauder, J. (2003). The Feynman Path Integral: An Historical Slice. doi.org. https://doi.org/10.1142/9789812795106_0005

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More for · 3

A derivation of the Schrödinger equation from Feynman’s path-integral formulation of quantum mechanics

2024

Notes that Feynman's path-integral formulation uses the propagation equation based on the Lagrangian, generalizing the action principle to quantum mechanics.

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Hendel, T. (2024). A derivation of the Schrödinger equation from Feynman’s path-integral formulation of quantum mechanics. doi.org. https://doi.org/10.1088/1361-6404/ad6cb1

Path integral formulation in the central potential of Wigner-Dunkl quantum mechanics

2025

Applies Feynman's path integral approach using Lagrangians in coordinate systems within quantum mechanics.

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Benzair, H., Boudjedaa, T., & Merad, M. (2025). Path integral formulation in the central potential of Wigner-Dunkl quantum mechanics. doi.org. https://doi.org/10.1088/1402-4896/adb707

Motion of Quantum Particles in Terms of Probabilities of Paths.

2025

Revisits the Feynman path integral formalism for non-relativistic quantum mechanics in terms of paths and transition probabilities.

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E, S. (2025). Motion of Quantum Particles in Terms of Probabilities of Paths.. doi.org. https://doi.org/10.3390/e27070728

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Is it true that thermal radiation is governed by the principles of quantum mechanics? SUPPORTED related question, same topic

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first checked04 Aug 2026

judged → SUPPORTED · 8404 Aug 2026

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