Generation and distillation of non-Gaussian entanglement from nonclassical photon statistics

被引：0
作者：
J. Solomon Ivan
N. Mukunda
R. Simon
机构：
[1] Raman Research Institute,Optics and Quantum Information Group
[2] The Institute of Mathematical Sciences,undefined
来源：
Quantum Information Processing | 2012年 / 11卷
关键词：
Partial transpose; Non-Gaussian entanglement; Distillation of entanglement; Beam splitter; Photon number distribution;
D O I：
暂无
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学科分类号：
摘要：
With a product state of the form \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\rho}_{\rm in} = {\rho}_{a} \otimes |0 \rangle_b {_b} \langle 0|}$$\end{document} as input to a beam splitter, the output two-mode state ρout is shown to be negative under partial transpose (NPT) whenever the photon number distribution (PND) statistics { p(na) } associated with the possibly mixed state ρa of the input a-mode is antibunched or otherwise nonclassical, i.e., whenever { p(na) } fails to respect any one of an infinite sequence of necessary and sufficient classicality conditions. Negativity under partial transpose turns out to be a necessary and sufficient test for entanglement of ρout which is generically non-Gaussian. The output of a PND distribution is further shown to be distillable if any one of an infinite sequence of three term classicality conditions is violated.
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页码：873 / 885
页数：12
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