Bi-orthogonal mutually unbiased bases for N-qubit systems

被引：0
|
作者：
Diaz, Juan J. [1 ]
Sainz, Isabel [1 ]
Klimov, Andrei B. [1 ,2 ]
机构：
[1] Univ Guadalajara, Dept Fis, Revoluc 1500, Guadalajara 44420, Jalisco, Mexico
[2] Univ Concepcion, Dept Fis, Ctr Quantum Opt & Quantum Informat, Ctr Opt & Photon, Casilla 160C, Concepcion, Chile
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2017年 / 50卷 / 08期
关键词：
quantum tomography; non orthogonal bases; mutually unbiased bases; STATE; ENTANGLEMENT;
D O I：
10.1088/1751-8121/aa532c
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have developed a general method for constructing a set of non-orthogonal bases with equal separations between all different basis' states for N-qubit systems. Using these bases we derive an explicit expression for the optimal tomography in non-orthogonal bases and discuss the amount of nonclassical resources required for the bases preparation and the precision of the reconstructed state. The special two-qubit case is analysed separately.
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页数：13
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