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Abstract: We propose a simple scheme for expanding a polarization-entangled W state. Bymixing a single photon and one of the photons in an n-photon W state at apolarization-dependent beam splitter PDBS, we can obtain an n+1-photon Wstate after post-selection. Our scheme also opens the door for generatingn-photon W states using single photons and linear optics.



Autor: Yan-Xiao Gong, Xu-Bo Zou, Yun-Feng Huang, Guang-Can Guo

Fuente: https://arxiv.org/



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