通过相互无偏基实现光子量子位的实验量子层析成像。

Experimental quantum tomography of photonic qudits via mutually unbiased basis.

作者信息

Lima G, Neves L, Guzmán R, Gómez E S, Nogueira W A T, Delgado A, Vargas A, Saavedra C

机构信息

Center for Optics and Photonics, Universidad de Concepción, Casilla 4016, Concepción, Chile.

出版信息

Opt Express. 2011 Feb 14;19(4):3542-52. doi: 10.1364/OE.19.003542.

DOI:10.1364/OE.19.003542

PMID:21369178

Abstract

We present the experimental quantum tomography of 7- and 8-dimensional quantum systems based on projective measurements in the mutually unbiased basis (MUB-QT). One of the advantages of MUB-QT is that it requires projections from a minimal number of bases to be performed. In our scheme, the higher dimensional quantum systems are encoded using the propagation modes of single photons, and we take advantage of the capabilities of amplitude- and phase-modulation of programmable spatial light modulators to implement the MUB-QT.

摘要

我们展示了基于相互无偏基（MUB-QT）中的投影测量对7维和8维量子系统进行的实验量子层析成像。MUB-QT的优点之一是它只需要从最少数量的基进行投影。在我们的方案中，使用单光子的传播模式对高维量子系统进行编码，并且我们利用可编程空间光调制器的幅度和相位调制能力来实现MUB-QT。