Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State

被引：92

作者：

Ceccarelli, Raino ^{[1
,2
]}

Vallone, Giuseppe ^{[1
,2
,3
]}

De Martini, Francesco ^{[1
,2
,4
]}

Mataloni, Paolo ^{[1
,2
]}

Cabello, Adan ^{[5
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[2] Consorzio Nazl Interuniv Sci Fis Mat, I-00185 Rome, Italy

[3] Ctr Studi & Ric Enrico Fermi, I-00184 Rome, Italy

[4] Accademia Nazl Lincei, I-00165 Rome, Italy

[5] Univ Seville, Dept Fis Aplicada 2, E-41012 Seville, Spain

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 16期

关键词：

Degrees of freedom (mechanics);

D O I：

10.1103/PhysRevLett.103.160401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We create a six-qubit linear cluster state by transforming a two-photon hyperentangled state in which three qubits are encoded in each particle, one in the polarization and two in the linear momentum degrees of freedom. For this state, we demonstrate genuine six-qubit entanglement, persistency of entanglement against the loss of qubits, and higher violation than in previous experiments on Bell inequalities of the Mermin type.

引用

页数：4

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