Generation of high-fidelity four-photon cluster state and quantum-domain demonstration of one-way quantum computing

Yuuki Tokunaga, Shin Kuwashiro, Takashi Yamamoto +2

We experimentally demonstrate a simple scheme for generating a four-photon entangled cluster state with fidelity over 0.860 $\pm$ 0.015. We show that the fidelity is high enough to…