Dipole–quadrupole Förster resonance in cesium Rydberg gas
| Autor: | P. Cheinet, Bruno Pelle, Ennio Arimondo, R. Faoro, Pierre Pillet, Wilfried Maineult |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Angular momentum Resonance Condensed Matter Physics Quantum number 01 natural sciences Atomic and Molecular Physics and Optics 010305 fluids & plasmas symbols.namesake Dipole 0103 physical sciences Quadrupole Rydberg atom Rydberg formula symbols Physics::Atomic Physics Atomic physics 010306 general physics Quantum |
| Zdroj: | Journal of Physics B: Atomic, Molecular and Optical Physics. 49:214001 |
| ISSN: | 1361-6455 0953-4075 |
| Popis: | The resonant energy transfer between two close particles, also known as Forster resonance in atomic or biological systems, is usually associated with dipole–dipole interaction. In Rydberg atoms, it is a widely used tool to enhance the interactions between particles. Here, we observe a resonant energy transfer between Rydberg atoms that cannot be attributed to a dipole–dipole interaction, owing to selection rules, and comes instead from an efficient dipole–quadrupole process. We compare the measured probability transfer with a theoretical model including quadrupolar terms and find very good agreement with our measurement. Further studies of those multipolar resonances should probe their dependences on various parameters (quantum numbers, relative orientation of the atoms), and may find some applications in quantum procedures where dipole–dipole resonance cannot be used, for instance where the states of interest have a difference in angular momentum of two. |
| Databáze: | OpenAIRE |
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