Experimental realization of a SU(3) color-orbit coupling in an ultracold gas
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908592554115072 |
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| author | Madasu, Chetan S. Mitra, Chirantan Gabardos, Lucas Rathod, Ketan D. Zanon-Willette, Thomas Miniatura, Christian Chevy, Frederic Kwong, Chi Wilkowski, David |
| author_facet | Madasu, Chetan S. Mitra, Chirantan Gabardos, Lucas Rathod, Ketan D. Zanon-Willette, Thomas Miniatura, Christian Chevy, Frederic Kwong, Chi Wilkowski, David |
| contents | Spin-orbit interaction couples the spin of a particle to its motion and leads to spin-induced transport phenomena such as spin-Hall effects and Chern insulators. In this work, we extend the concept of internal-external state coupling to higher internal symmetry, exploring features beyond the established spin-orbit regime. We couple suitable resonant laser beams to a gas of ultracold atoms, thereby inducing artificial SU(3) non-Abelian gauge fields that act on a degenerate ground state manifold comprised of three dark states. We demonstrate the inherent all-state connectivity of SU(3) systems by performing targeted geometric transformations. Then, we investigate color-orbit coupling, an extension of SU(2) spin-orbit coupling to SU(3) systems. We reveal a rich dynamical interplay between three distinct oscillation frequencies, which possesses interesting analogies with neutrino oscillations and quark mixing mechanisms. In the future, the system should provide a testbed for exploring topological properties of SU(3) systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04714 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Experimental realization of a SU(3) color-orbit coupling in an ultracold gas Madasu, Chetan S. Mitra, Chirantan Gabardos, Lucas Rathod, Ketan D. Zanon-Willette, Thomas Miniatura, Christian Chevy, Frederic Kwong, Chi Wilkowski, David Atomic Physics Quantum Gases Optics Spin-orbit interaction couples the spin of a particle to its motion and leads to spin-induced transport phenomena such as spin-Hall effects and Chern insulators. In this work, we extend the concept of internal-external state coupling to higher internal symmetry, exploring features beyond the established spin-orbit regime. We couple suitable resonant laser beams to a gas of ultracold atoms, thereby inducing artificial SU(3) non-Abelian gauge fields that act on a degenerate ground state manifold comprised of three dark states. We demonstrate the inherent all-state connectivity of SU(3) systems by performing targeted geometric transformations. Then, we investigate color-orbit coupling, an extension of SU(2) spin-orbit coupling to SU(3) systems. We reveal a rich dynamical interplay between three distinct oscillation frequencies, which possesses interesting analogies with neutrino oscillations and quark mixing mechanisms. In the future, the system should provide a testbed for exploring topological properties of SU(3) systems. |
| title | Experimental realization of a SU(3) color-orbit coupling in an ultracold gas |
| topic | Atomic Physics Quantum Gases Optics |
| url | https://arxiv.org/abs/2502.04714 |