Observation of collective excitation of two individual atoms in the Rydberg blockade regime
| Autor: | Yevhen Miroshnychenko, Amodsen Chotia, Tatjana Wilk, Daniel Comparat, Philippe Grangier, Antoine Browaeys, Matthieu Viteau, Alpha Gaëtan, Pierre Pillet |
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| Přispěvatelé: | Laboratoire Charles Fabry de l'Institut d'Optique / Optique quantique, Laboratoire Charles Fabry de l'Institut d'Optique (LCFIO), Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut d'Optique Graduate School (IOGS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2009 |
| Předmět: |
Condensed Matter::Quantum Gases
Quantum optics Physics Quantum Physics Cavity quantum electrodynamics FOS: Physical sciences General Physics and Astronomy Magnetic quantum number 01 natural sciences 010305 fluids & plasmas symbols.namesake [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Quantum state Excited state 0103 physical sciences Rydberg atom Principal quantum number Physics::Atomic and Molecular Clusters Rydberg formula symbols Physics::Atomic Physics Atomic physics Quantum Physics (quant-ph) 010306 general physics |
| Zdroj: | Nature Physics Nature Physics, Nature Publishing Group, 2009, 5, pp.115-118. ⟨10.1038/nphys1183⟩ |
| ISSN: | 1745-2481 1745-2473 1476-4636 |
| DOI: | 10.1038/nphys1183 |
| Popis: | The dipole blockade between Rydberg atoms has been proposed as a basic tool in quantum information processing with neutral atoms. Here we demonstrate experimentally the Rydberg blockade of two individual atoms separated by 4 $\mu$m. Moreover, we show that, in this regime, the single atom excitation is enhanced by a collective two-atom behavior associated with the excitation of an entangled state. This observation is a crucial step towards the deterministic manipulation of entanglement of two or more atoms using the Rydberg dipole interaction. Comment: 5 pages, 4 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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