Multiparticle quantum superposition and stimulated entanglement by parity selective amplification of entangled states -: art. no. 150401

被引：20

作者：

De Martini, F ^{[1
]}

Di Giuseppe, G

Pádua, S

机构：

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

[2] Univ Roma La Sapienza, Ist Nazl Fis Mat, I-00185 Rome, Italy

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.87.150401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the creation of an entangled multiphoton quantum superposition by quantum injection of entangled 2-photon states into a parity selective parametric amplifier. The information preserving property of the state transformation suggests for these macrostates the name of large qubits. They are ideal objects for investigating the emergence of the classical world in complex quantum systems and have relevant new applications in quantum information.

引用

页码：150401 / 150401

页数：4

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