Decoherence and Fidelity in Teleportation of Coherent Photon-Added Two-Mode Squeezed Thermal States
Decoherence and Fidelity in Teleportation of Coherent Photon-Added Two-Mode Squeezed Thermal States
复制标题
相干光子附加二模压缩热态隐形传态的退相干和保真度
DOI：
10.1007/s10773-017-3626-x
复制
发表时间：
2018-04
影响因子：
1.4
通讯作者：
Wang Zhen
中科院分区：
文献类型：
--
作者：
Li Heng Mei;Yuan Hong Chun;Wan Zhi Long;Wang Zhen
通过对双模压缩热态进行相干光子相加操作，从理论上引入了一种非高斯纠缠资源，即相干光子相加双模压缩热态（CPA-TMSTS）。得到了二元埃尔米特多项式的归一化因子。在此基础上，利用Wigner函数分析了非经典性和退相干过程。结果表明，相干光子加法运算是产生Wigner函数偏负值的有效方法，这清楚地体现了目标态的非经典性和非高斯性。此外，利用CPA-TMSTS作为纠缠源，对远距传输相干态的保真度进行了分析和数值量化。研究发现，CPA-TMSTS是一种高效、高保真的量子隐形传态纠缠源。
We theoretically introduce a kind of non-Gaussian entangled resources, i.e., coherent photon-added two-mode squeezed thermal states (CPA-TMSTS), by successively performing coherent photon addition operation to the two-mode squeezed thermal states. The normalization factor related to bivariate Hermite polynomials is obtained. Based upon it, the nonclassicality and decoherence process are analyzed by virtue of the Wigner function. It is shown that the coherent photon addition operation is an effective way in generating partial negative values of Wigner function, which clearly manifests the nonclassicality and non-Gaussianity of the target states. Additionally, the fidelity in teleporting coherent states using CPA-TMSTS as entangled resource is quantified both analytically and numerically. It is found that the CPA-TMSTS is an entangled resource of high-efficiency and high-fidelity in quantum teleportation.
登录
查看更多内容
影响因子：
64.8
作者：
Huang, Hsien-Sung;Allen, John A.;Mabb, Angela M.;King, Ian F.;Miriyala, Jayalakshmi;Taylor-Blake, Bonnie;Sciaky, Noah;Dutton, J. Walter, Jr.;Lee, Hyeong-Min;Chen, Xin;Jin, Jian;Bridges, Arlene S.;Zylka, Mark J.;Roth, Bryan L.;Philpot, Benjamin D.
通讯作者：
Philpot, Benjamin D.
影响因子：
64.8
作者：
Juan Yin;Ji-Gang Ren;He Lu;Yuan Cao;Hai-Lin Yong;Yu-Ping Wu;Chang Liu;Shengkai Liao;Fei Zhou
通讯作者：
Juan Yin;Ji-Gang Ren;He Lu;Yuan Cao;Hai-Lin Yong;Yu-Ping Wu;Chang Liu;Shengkai Liao;Fei Zhou
影响因子：
3.1
作者：
F. Hong-yi;Meng Xiang-guo;Wang Ji-suo
通讯作者：
F. Hong-yi;Meng Xiang-guo;Wang Ji-suo
影响因子：
2.6
作者：
FAN, HY;ZAIDI, HR
通讯作者：
ZAIDI, HR
影响因子：
2.9
作者：
P. Marian;T. A. Marian
通讯作者：
P. Marian;T. A. Marian