Direct observation of the optical Magnus effect with a trapped ion
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866914295381491712 |
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| author | Leindecker, Philip Gallagher, Louis P. H. Brucke, Edgar Zehnder, Dominique Milanovic, Luka Marinelli, Matteo Gerritsma, Rene Spreeuw, Robert J. C. Home, Jonathan Hempel, Cornelius |
| author_facet | Leindecker, Philip Gallagher, Louis P. H. Brucke, Edgar Zehnder, Dominique Milanovic, Luka Marinelli, Matteo Gerritsma, Rene Spreeuw, Robert J. C. Home, Jonathan Hempel, Cornelius |
| contents | We directly observe and spatially map an optical analog of the Magnus effect, where intrinsic spin-orbit-like coupling of light generates a spin-dependent transverse displacement of the atom-light interaction profile for a $^{40}$Ca$^+$ ion. Probed on a quadrupole transition using a tightly focused beam, we observe displacements of the maximum in the profile of the effective interaction by several 100 nm originating from intrinsic longitudinal electric field components beyond the paraxial approximation. The tight focus of the beam induces additional transverse polarization gradients, which we characterize through a phase-sensitive measurement and spatial maps for different beam configurations. The results establish the physical basis of polarization-gradient interactions relevant to optical tweezer-based quantum control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_22981 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Direct observation of the optical Magnus effect with a trapped ion Leindecker, Philip Gallagher, Louis P. H. Brucke, Edgar Zehnder, Dominique Milanovic, Luka Marinelli, Matteo Gerritsma, Rene Spreeuw, Robert J. C. Home, Jonathan Hempel, Cornelius Atomic Physics Quantum Physics We directly observe and spatially map an optical analog of the Magnus effect, where intrinsic spin-orbit-like coupling of light generates a spin-dependent transverse displacement of the atom-light interaction profile for a $^{40}$Ca$^+$ ion. Probed on a quadrupole transition using a tightly focused beam, we observe displacements of the maximum in the profile of the effective interaction by several 100 nm originating from intrinsic longitudinal electric field components beyond the paraxial approximation. The tight focus of the beam induces additional transverse polarization gradients, which we characterize through a phase-sensitive measurement and spatial maps for different beam configurations. The results establish the physical basis of polarization-gradient interactions relevant to optical tweezer-based quantum control. |
| title | Direct observation of the optical Magnus effect with a trapped ion |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2601.22981 |