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Path-integral approach to Casimir effect with infinitely thin plates

David Vercauteren*

  • Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam and Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam

  • *Contact author: VercauterenDavid@DuyTan.edu.vn
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Phys. Rev. D 113, 045016 – Published 19 February, 2026

DOI: https://doi.org/10.1103/rd6t-crfq

Abstract

When studying the Casimir effect in a quantum field theory setting, one can impose the boundary conditions by adding appropriate Dirac-δ functions to the path integral. In this paper, the limits of this approach are explored under different boundary conditions.

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Phys. Rev. D 113, 045016– Published 19 February, 2026
  • Received 3 December 2025
  • Accepted 20 January 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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