Polarization squeezing and multipartite entanglement of triphoton states
Polarization squeezing and multipartite entanglement of triphoton states
复制标题
三光子态的偏振压缩和多部分纠缠
DOI:
10.1364/josab.27.00a105
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发表时间:
2010-03
期刊:
影响因子:
--
通讯作者:
金光日
中科院分区:
文献类型:
--
作者:
金光日
Based upon standard angular momentum theory, we develop a framework to investigate polarization squeezing and multipartite entanglement of a quantum light field. Both mean polarization and variances of the Stokes parameters are obtained analytically, with which we study recent observation of triphoton states [L. K. Shalm et al., Nature 457, 67 (2009)]. Our results show that the appearance of the maximally entangled NOON state accompanied by (|3,0⟩H,V−i|3,0⟩H,V)√2, is a flip of mean polarization and can be well understood in terms of quantum Fisher information.
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