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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.13237 |
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| _version_ | 1866918447096528896 |
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| author | Fosco, C. D. Guntsche, B. C. |
| author_facet | Fosco, C. D. Guntsche, B. C. |
| contents | We evaluate the effective action for the Dynamical Casimir Effect (DCE) for a real scalar field in d+1 dimensions within the worldline formulation of quantum field theory. The scalar field is coupled to a spacetime-dependent mass term, which here plays the role of the moving medium and imposes imperfect boundary conditions on time-dependent surfaces. Expanding in powers of the departure of the geometry from a planar configuration, the worldline path integral factorizes into simpler, lower-dimensional ones. In the limit of a strong coupling to the surface, we recover the Dirichlet result and derive the systematic corrections in inverse powers of the coupling. Finally, we also apply the method to a two-surface configuration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_13237 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Dynamical Casimir effect in the worldline formulation Fosco, C. D. Guntsche, B. C. High Energy Physics - Theory Quantum Physics We evaluate the effective action for the Dynamical Casimir Effect (DCE) for a real scalar field in d+1 dimensions within the worldline formulation of quantum field theory. The scalar field is coupled to a spacetime-dependent mass term, which here plays the role of the moving medium and imposes imperfect boundary conditions on time-dependent surfaces. Expanding in powers of the departure of the geometry from a planar configuration, the worldline path integral factorizes into simpler, lower-dimensional ones. In the limit of a strong coupling to the surface, we recover the Dirichlet result and derive the systematic corrections in inverse powers of the coupling. Finally, we also apply the method to a two-surface configuration. |
| title | Dynamical Casimir effect in the worldline formulation |
| topic | High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2604.13237 |