Hexapartite Entanglement in an above-Threshold Optical Parametric Oscillator
نویسندگان
چکیده
منابع مشابه
Direct production of tripartite pump-signal-idler entanglement in the above-threshold optical parametric oscillator.
We calculate the quantum correlations existing among the three output fields (pump, signal, and idler) of a triply resonant nondegenerate optical parametric oscillator operating above threshold. By applying the standard criteria [P. van Loock and A. Furusawa, Phys. Rev. A 67, 052315 (2003)], we show that strong tripartite continuous-variable entanglement is present in this well-known and simple...
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We describe several recent experimental studies in the above-threshold optical parametric oscillator (OPO). Seventeen years after the original prediction, entanglement of the twin beams was experimentally demonstrated in 2005. It was followed by the prediction that the OPO should directly produce tripartite pump-signal-idler entangled beams. We also present experimental quantum correlations amo...
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Multipartite entanglement is used for quantum information applications, such as building multipartite quantum communications. Generally, generation of multipartite entanglement is based on a complex beam-splitter network. Here, based on the spatial freedom of light, we experimentally demonstrated spatial quadripartite continuous variable entanglement among first-order Hermite-Gaussian modes usi...
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We propose and demonstrate a new method for phaselocking the signal fields emitted above threshold by a nondegenerate, type-II optical parametric oscillator (OPO). This method is based on the observation that amplitude modulation of the pump beam produces a related modulation of the frequency difference of the OPO signals via the temperature-tuning of the index of refraction in the nonlinear cr...
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Article history: Received 21 February 2011 Received in revised form 14 April 2011 Accepted 25 April 2011 Available online 4 May 2011 Communicated by P.R. Holland
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2018
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.121.073601