Experimental Tests of Classical and Quantum Dimensionality

被引：38

作者：

Ahrens, Johan ^{[1
]}

Badziag, Piotr ^{[1
]}

Pawlowski, Marcin ^{[2
,3
]}

Zukowski, Marek ^{[2
]}

Bourennane, Mohamed ^{[1
]}

机构：

[1] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden

[2] Univ Gdansk, Inst Fizyki Teoretycznej & Astrofizyki, PL-80952 Gdansk, Poland

[3] Univ Bristol, Dept Math, Bristol BS8 1TW, Avon, England

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 14期

基金：

瑞典研究理事会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.112.140401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on an experimental test of classical and quantum dimension. We have used a dimension witness that can distinguish between quantum and classical systems of dimensions two, three, and four and performed the experiment for all five cases. The witness we have chosen is a base of semi-device-independent cryptographic and randomness expansion protocols. Therefore, the part of the experiment in which qubits were used is a realization of these protocols. In our work we also present an analytic method for finding the maximum quantum value of the witness along with corresponding measurements and preparations. This method is quite general and can be applied to any linear dimension witness.

引用

页数：5

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