Selective and efficient quantum state tomography and its application to quantum process tomography

被引：8

作者：

Bendersky, Ariel ^{[1
]}

Pablo Paz, Juan ^{[2
,3
]}

机构：

[1] ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain

[2] Univ Buenos Aires, CONICET, Dept Fis FCEyN UBA, RA-1428 Buenos Aires, DF, Argentina

[3] Univ Buenos Aires, CONICET, IFIBA, RA-1428 Buenos Aires, DF, Argentina

来源：

PHYSICAL REVIEW A | 2013年 / 87卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.87.012122

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method for quantum state tomography that enables the efficient estimation, with fixed precision, of any of the matrix elements of the density matrix of a state, provided that the states from the basis in which the matrix is written can be efficiently prepared in a controlled manner. Furthermore, we show how this algorithm is well suited for quantum process tomography, enabling one to perform selective and efficient quantum process tomography. DOI: 10.1103/PhysRevA.87.012122

引用

页数：5

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