Nonlinear improvement of qubit-qudit entanglement witnesses
Nonlinear improvement of qubit-qudit entanglement witnesses
复制标题
量子比特-量子纠缠见证的非线性改进
DOI:
10.1103/physreva.101.012312
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发表时间:
2020-01
期刊:
影响因子:
--
通讯作者:
Shao Ming FEI
中科院分区:
文献类型:
--
作者:
Shu Qian Shen;Jinmin Liang;Ming Li;Juan Yu;Shao Ming FEI
The entanglement witness is an important and experimentally applicable tool for entanglement detection. In this paper, we provide a nonlinear improvement of any entanglement witness for $2\otimes d$ quantum systems. Compared with any existing entanglement witness, the improved separability criterion only needs two more measurements on local observables. Detailed examples are employed to illustrate the efficiency of the nonlinear improvement for general, optimal and non-decomposable entanglement witnesses.
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DOI:
10.1007/1-4020-2721-4_1
发表时间:
2011-04
期刊:
--
影响因子:
--
作者:
B. Ya
通讯作者:
B. Ya
影响因子:
2.9
作者:
J. M. Arrazola;O. Gittsovich;N. Lutkenhaus
通讯作者:
J. M. Arrazola;O. Gittsovich;N. Lutkenhaus
影响因子:
8.6
作者:
Joseph Bowles;I. Šupić;D. Cavalcanti;A. Acín
通讯作者:
Joseph Bowles;I. Šupić;D. Cavalcanti;A. Acín
影响因子:
8.6
作者:
BENNETT, CH;WIESNER, SJ
通讯作者:
WIESNER, SJ
影响因子:
8.6
作者:
Barbieri, M;De Martini, F;Macchiavello, C
通讯作者:
Macchiavello, C