Computable bounds for the discrimination of Gaussian states

被引：119
|
作者：
Pirandola, Stefano [1 ]
Lloyd, Seth [1 ,2 ]
机构：
[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA
[2] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW A | 2008年 / 78卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.78.012331
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By combining the Minkowski inequality and the quantum Chernoff bound, we derive easy-to-compute upper bounds for the error probability affecting the optimal discrimination of Gaussian states. In particular, these bounds are useful when the Gaussian states are unitarily inequivalent, i.e., they differ in their symplectic invariants.
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收藏
页数：8
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