dorsal/arxiv
View SchemaTopological spin transport of photons: the optical Magnus Effect and Berry Phase
| Authors | K. Yu. Bliokh, Yu. P. Bliokh |
|---|---|
| Categories | |
| ArXiv ID | physics/0402110 |
| URL | https://arxiv.org/abs/physics/0402110 |
| DOI | 10.1016/j.physleta.2004.10.035 |
| Journal | Physics Letters A 333(3-4), 181-186 (2004) |
Abstract
The paper develops a modified geometrical optics (GO) of smoothly inhomogeneous isotropic medium, which takes into account two topological phenomena: Berry phase and the optical Magnus effect. By using the analogy between a quasi-classical motion of a quantum particle with a spin and GO of an electromagnetic wave in smoothly inhomogeneous media, we have introduced the standard gauge potential associated with the degeneracy in the wave momentum space. This potential corresponds to the Dirac-monopole-like field (Berry curvature), which causes the topological spin (polarization) transport of photons. The deviations of waves of right-hand and left-hand helicity occur in the opposite directions and orthogonally to the principal direction of motion. This produces a spin current directed across the principal motion. The situation is similar to the anomalous Hall effect for electrons. In addition, a simple scheme of the experiment allowing one to observe the topological spin splitting of photons has been suggested.
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"abstract": "The paper develops a modified geometrical optics (GO) of smoothly\ninhomogeneous isotropic medium, which takes into account two topological\nphenomena: Berry phase and the optical Magnus effect. By using the analogy\nbetween a quasi-classical motion of a quantum particle with a spin and GO of an\nelectromagnetic wave in smoothly inhomogeneous media, we have introduced the\nstandard gauge potential associated with the degeneracy in the wave momentum\nspace. This potential corresponds to the Dirac-monopole-like field (Berry\ncurvature), which causes the topological spin (polarization) transport of\nphotons. The deviations of waves of right-hand and left-hand helicity occur in\nthe opposite directions and orthogonally to the principal direction of motion.\nThis produces a spin current directed across the principal motion. The\nsituation is similar to the anomalous Hall effect for electrons. In addition, a\nsimple scheme of the experiment allowing one to observe the topological spin\nsplitting of photons has been suggested.",
"arxiv_id": "physics/0402110",
"authors": [
"K. Yu. Bliokh",
"Yu. P. Bliokh"
],
"categories": [
"physics.optics",
"physics.gen-ph"
],
"doi": "10.1016/j.physleta.2004.10.035",
"journal_ref": "Physics Letters A 333(3-4), 181-186 (2004)",
"title": "Topological spin transport of photons: the optical Magnus Effect and Berry Phase",
"url": "https://arxiv.org/abs/physics/0402110"
},
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