连续变量两组分非对称EPR导引交换特性

翟淑琴; 袁楠; 李倩

doi:doi:10.3788/AOS202040.0427001

光学学报, 2020, 40 (4): 0427001, 网络出版: 2020-02-11

连续变量两组分非对称EPR导引交换特性下载： 923次

Asymmetric Bipartite EPR Steering Swapping Characteristics of Continuous Variable

翟淑琴 ^1,2,*袁楠 ¹李倩 ¹

作者单位

¹ 山西大学物理与电子工程学院, 山西太原 030006

² 山西大学光电子研究所量子光学与量子光学器件国家重点实验室, 山西太原 030006

图 & 表

图 1. 非对称EPR导引交换示意图。(a)输出端两端加非对称调制;(b) $\begin{matrix} \hat{A} \end{matrix}$ 端加噪声, $\begin{matrix} \end{matrix}$
Fig. 1. Schematics of asymmetric swapping of EPR steering. (a) Asymmetric modulation added in two output ends; (b)noise added in $\begin{matrix} \hat{A} \end{matrix}$ end, and modulation added in

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图 2. 方案一中导引参数随经典调制因子和压缩参数的变化(g₁=g₂=g)。(a)输入压缩模的压缩参数取不同值时导引参数随经典调制因子的变化;(b)导引参数随输入模压缩参数的变化(g₁=g₂=g=0.35)

Fig. 2. EPR steering parameters versus modulation factors and squeezing parameters in scheme I(g₁=g₂=g). (a) Dependence of EPR steering on modulation factors with two different squeezing parameters of input squeezed modes; (b) dependence of EPR steering on squeezing parameters of input squeezed modes (g₁=g₂=g=0.35)

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图 3. 方案二中导引参数随经典调制因子和噪声的变化(g₁=g₂=g,r=1.15)。(a)噪声取不同值时导引参数随经典调制因子的变化;(b)经典调制因子取不同值时导引参数随噪声的变化方案

Fig. 3. EPR steering parameters versus modulation factors and noises in scheme II(g₁=g₂=g,r=1.15). (a) Dependence of EPR steering on modulation factors with two different squeezing parameters of input squeezed modes; (b) dependence of EPR steering on squeezing parameters of input squeezed modes

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翟淑琴, 袁楠, 李倩. 连续变量两组分非对称EPR导引交换特性[J]. 光学学报, 2020, 40(4): 0427001. Shuqin Zhai, Nan Yuan, Qian Li. Asymmetric Bipartite EPR Steering Swapping Characteristics of Continuous Variable[J]. Acta Optica Sinica, 2020, 40(4): 0427001.

连续变量两组分非对称EPR导引交换特性下载： 923次

Fig. 1. Schematics of asymmetric swapping of EPR steering. (a) Asymmetric modulation added in two output ends; (b)noise added in $\begin{matrix} \hat{A} \end{matrix}$ end, and modulation added in

图 2. 方案一中导引参数随经典调制因子和压缩参数的变化(g₁=g₂=g)。(a)输入压缩模的压缩参数取不同值时导引参数随经典调制因子的变化;(b)导引参数随输入模压缩参数的变化(g₁=g₂=g=0.35)

图 3. 方案二中导引参数随经典调制因子和噪声的变化(g₁=g₂=g,r=1.15)。(a)噪声取不同值时导引参数随经典调制因子的变化;(b)经典调制因子取不同值时导引参数随噪声的变化方案

Fig. 3. EPR steering parameters versus modulation factors and noises in scheme II(g₁=g₂=g,r=1.15). (a) Dependence of EPR steering on modulation factors with two different squeezing parameters of input squeezed modes; (b) dependence of EPR steering on squeezing parameters of input squeezed modes

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连续变量两组分非对称EPR导引交换特性 下载： 923次

图 1. 非对称EPR导引交换示意图。(a)输出端两端加非对称调制;(b) A^端加噪声,Fig. 1. Schematics of asymmetric swapping of EPR steering. (a) Asymmetric modulation added in two output ends; (b)noise added in A^ end, and modulation added in

Fig. 1. Schematics of asymmetric swapping of EPR steering. (a) Asymmetric modulation added in two output ends; (b)noise added in A^ end, and modulation added in

图 2. 方案一中导引参数随经典调制因子和压缩参数的变化(g1=g2=g)。(a)输入压缩模的压缩参数取不同值时导引参数随经典调制因子的变化;(b)导引参数随输入模压缩参数的变化(g1=g2=g=0.35)

图 3. 方案二中导引参数随经典调制因子和噪声的变化(g1=g2=g,r=1.15)。(a)噪声取不同值时导引参数随经典调制因子的变化;(b)经典调制因子取不同值时导引参数随噪声的变化方案

Fig. 3. EPR steering parameters versus modulation factors and noises in scheme II(g1=g2=g,r=1.15). (a) Dependence of EPR steering on modulation factors with two different squeezing parameters of input squeezed modes; (b) dependence of EPR steering on squeezing parameters of input squeezed modes

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连续变量两组分非对称EPR导引交换特性下载： 923次

Fig. 1. Schematics of asymmetric swapping of EPR steering. (a) Asymmetric modulation added in two output ends; (b)noise added in $\begin{matrix} \hat{A} \end{matrix}$ end, and modulation added in

图 2. 方案一中导引参数随经典调制因子和压缩参数的变化(g₁=g₂=g)。(a)输入压缩模的压缩参数取不同值时导引参数随经典调制因子的变化;(b)导引参数随输入模压缩参数的变化(g₁=g₂=g=0.35)

图 3. 方案二中导引参数随经典调制因子和噪声的变化(g₁=g₂=g,r=1.15)。(a)噪声取不同值时导引参数随经典调制因子的变化;(b)经典调制因子取不同值时导引参数随噪声的变化方案

Fig. 3. EPR steering parameters versus modulation factors and noises in scheme II(g₁=g₂=g,r=1.15). (a) Dependence of EPR steering on modulation factors with two different squeezing parameters of input squeezed modes; (b) dependence of EPR steering on squeezing parameters of input squeezed modes