Measuring measurement: theory and practice

被引：73

作者：

Feito, A. ^{[1
,2
]}

Lundeen, J. S. ^{[4
]}

Coldenstrodt-Ronge, H. ^{[4
]}

Eisert, J. ^{[3
]}

Plenio, M. B. ^{[1
,2
]}

Walmsley, I. A. ^{[4
]}

机构：

[1] Imperial Coll London, Inst Math Sci, London SW7 2PG, England

[2] Imperial Coll London, Blackett Lab, QOLS, London SW7 2BW, England

[3] Univ Potsdam, D-14476 Potsdam, Germany

[4] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

DENSITY-MATRIX; QUANTUM; ENTANGLEMENT; DETECTOR; TOMOGRAPHY; PHOTONS;

D O I：

10.1088/1367-2630/11/9/093038

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent efforts have applied quantum tomography techniques to the calibration and characterization of complex quantum detectors using minimal assumptions. In this work, we provide detail and insight concerning the formalism, the experimental and theoretical challenges and the scope of these tomographical tools. Our focus is on the detection of photons with avalanche photodiodes and photon-number resolving detectors and our approach is to fully characterize the quantum operators describing these detectors with a minimal set of well-specified assumptions. The formalism is completely general and can be applied to a wide range of detectors.

引用

页数：39

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