@Article{Yao_etal2012,
author="Yao, Xing-Can
and Wang, Tian-Xiong
and Xu, Ping
and Lu, He
and Pan, Ge-Sheng
and Bao, Xiao-Hui
and Peng, Cheng-Zhi
and Lu, Chao-Yang
and Chen, Yu-Ao
and Pan, Jian-Wei",
title="Observation of eight-photon entanglement",
journal="Nature Photonics",
year="2012",
volume="6",
number="4",
pages="225--228",
optkeywords="fromIPMRAS",
abstract="The creation of increasingly large multipartite entangled states is not only a fundamental scientific endeavour in itself, but is also the enabling technology for quantum information. Tremendous experimental effort has been devoted to generating multiparticle entanglement with a growing number of qubits. So far, up to six spatially separated single photons have been entangled based on parametric downconversion. Multiple degrees of freedom of a single photon have been exploited to generate forms of hyper-entangled states. Here, using new ultra-bright sources of entangled photon pairs, an eight-photon interferometer and post-selection detection, we demonstrate for the first time the creation of an eight-photon Schr{\"o}dinger cat state with genuine multipartite entanglement. The ability to control eight individual photons represents a step towards optical quantum computation, and will enable new experiments on, for example, quantum simulation, topological error correction and testing entanglement dynamics under decoherence.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=784), last updated on Mon, 07 May 2012 21:12:55 -0500"
}