Feasible Linear-optics Generation of Polarization-entangled Photons Assisted with Single-photon Quantum Non-demolition Measurement

Zeng-Bing Chen, Jian-Wei Pan, Yong-De Zhang

We propose a feasible scheme to create $n$-party ($n\ge 2$) polarization-entangled photon states in a controllable way. The scheme requires only single-photon sources, single-phot…