Complex orientation dependence of Casimir-Polder interaction induced by curvature and optical properties of the surface and the surrounding medium
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866914142708826112 |
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| author | Bimonte, Giuseppe Emig, Thorsten |
| author_facet | Bimonte, Giuseppe Emig, Thorsten |
| contents | We employ a multiple scattering expansion to systematically derive curvature corrections to the Casimir-Polder (CP) interaction between small an-isotropic particles and general magneto-dielectric surfaces. Our results, validated against exact solutions, reveal a complex, distance-dependent interplay between material properties and surface curvature in determining stable particle orientations. We demonstrate that even small surface curvature can induce or eliminate switches in the preferred orientation, a quantum effect that is diminished by thermal fluctuations. This work provides a crucial understanding of how to engineer nano-particle orientation through tune-able parameters, offering significant implications for micro- and nano-mechanical device design. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_20327 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Complex orientation dependence of Casimir-Polder interaction induced by curvature and optical properties of the surface and the surrounding medium Bimonte, Giuseppe Emig, Thorsten Quantum Physics We employ a multiple scattering expansion to systematically derive curvature corrections to the Casimir-Polder (CP) interaction between small an-isotropic particles and general magneto-dielectric surfaces. Our results, validated against exact solutions, reveal a complex, distance-dependent interplay between material properties and surface curvature in determining stable particle orientations. We demonstrate that even small surface curvature can induce or eliminate switches in the preferred orientation, a quantum effect that is diminished by thermal fluctuations. This work provides a crucial understanding of how to engineer nano-particle orientation through tune-able parameters, offering significant implications for micro- and nano-mechanical device design. |
| title | Complex orientation dependence of Casimir-Polder interaction induced by curvature and optical properties of the surface and the surrounding medium |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2506.20327 |