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|Title:||Strong interaction between light and a single trapped atom without the need for a cavity||Authors:||Tey, M.K.
|Issue Date:||Dec-2008||Citation:||Tey, M.K., Chen, Z., Aljunid, S.A., Chng, B., Huber, F., Maslennikov, G., Kurtsiefer, C. (2008-12). Strong interaction between light and a single trapped atom without the need for a cavity. Nature Physics 4 (12) : 924-927. ScholarBank@NUS Repository. https://doi.org/10.1038/nphys1096||Abstract:||Many quantum information processing protocols require efficient transfer of quantum information from a flying photon to a stationary quantum system. To transfer information, a photon must first be absorbed by the quantum system. This can be achieved, with a probability close to unity, by an atom residing in a high-finesse cavity. However, it is unclear whether a photon can be absorbed effectively by an atom in a free space. Here, we report on an observation of substantial extinction of a light beam by a single 87Rb atom through focusing light to a small spot with a single lens. The measured extinction values can be directly compared to the predictions of existing free-space photon-atom coupling models. Our result should open a new perspective on processing quantum information carried by light using atoms, in particular for experiments that require strong absorption of single photons by an atom in free space. © 2008 Macmillan Publishers Limited. All rights reserved.||Source Title:||Nature Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/115298||ISSN:||17452473||DOI:||10.1038/nphys1096|
|Appears in Collections:||Staff Publications|
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