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Atom–atom entanglement generated at early times by two-photon emission

AuthorsLeón, Juan ; Sabín, Carlos
Keywords[PACS] Entanglement production and manipulation
[PACS] Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
[PACS] Quantum description of interaction of light and matter; related experiments
Issue DateApr-2009
PublisherRoyal Swedish Academy of Sciences
Institute of Physics Publishing
CitationPhysica Scripta (2009), stacks.iop.org/PhysScr/T134/ [Article in press]
AbstractWe analyze entanglement generation between a pair of neutral two-level atoms that are initially excited in a common electromagnetic vacuum. The nonlocal correlations that appear due to the interaction with the field can become entanglement when the field state is known. We distinguish two different situations: in the first, the field remains in the vacuum state and second two photons are present in the final state. In both cases, we study the dependence of the entanglement on time and interatomic distance, at ranges related with locality issues.
Description4 pages, 4 figures.-- PACS nrs.: 03.67.Bg, 03.65.Ud, 42.50.Ct.-- ArXiv pre-print available at: http://arxiv.org/abs/0810.2246
Article in press
Publisher version (URL)http://stacks.iop.org/PhysScr/T134/
Appears in Collections:(CFMAC-IFF) Artículos
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