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Title: Tripartite entanglement generation via four-wave mixings : narrowband triphoton W state
Authors: Du, Shengwang
Wen, Jianming
Oh, Eun
Keywords: Quantum optics
Photon counting
Nonlinear optics
Four-wave mixing
Parametric processes
Issue Date: 1-Jun-2010
Citation: Journal of the Optical Society of America B, v. 27, iss. 6, p. A11-A20
Abstract: We propose a method to generate a narrowband triphoton W state entangled in time (or energy) via two four-wave mixing processes in cold atomic gas media. The calculation of such a triphoton W state is performed with second-order perturbation theory. To characterize the optical properties of the state, we analyze the two~photon and three-photon temporal correlations in the photon coincidence counting measurement. Considering the role of determining the time coherence of triphotons between the nonlinear susceptibilities and phase matchings, we concentrate on two regimes, damped Rabi oscillation and group delay, to look at the temporal correlations. To further enhance the nonlinear interactions, it may be promising to consider cold atoms confined within hollow fibers or loaded into a high-Q cavity.
Rights: We would like to give credit to the Optical Society of America for granting us permission to repost this Journal of Optical Society of America B article. The original article is posted on the journal's web site at
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