Full Multipartite Entanglement of Frequency-Comb Gaussian States
Full Multipartite Entanglement of Frequency-Comb Gaussian States
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DOI：
10.1103/physrevlett.114.050501
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发表时间：
2015-02-02
影响因子：
8.6
通讯作者：
Fabre, C.
中科院分区：
文献类型：
--
作者：
Gerke, S.;Sperling, J.;Fabre, C.
对飞秒频率梳参数下转换产生的高斯态的多体纠缠进行了分析。利用最近提出的一种构造最优纠缠准则的方法，提出了一系列超越传统二分分析的模分解测试。对这一族进行了数值优化，以达到纠缠验证的最大意义。对于实验制备的4模态、6模态和10模态，分别对所有14、202和115 974个可能的非平凡分区证明了完全纠缠。
An analysis is conducted of the multipartite entanglement for Gaussian states generated by the parametric down-conversion of a femtosecond frequency comb. Using a recently introduced method for constructing optimal entanglement criteria, a family of tests is formulated for mode decompositions that extends beyond the traditional bipartition analyses. A numerical optimization over this family is performed to achieve maximal significance of entanglement verification. For experimentally prepared 4-, 6-, and 10-mode states, full entanglement is certified for all of the 14, 202, and 115 974 possible nontrivial partitions, respectively.