Simple scheme for expanding a polarization-entangled W state by adding one photon

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We propose a simple scheme for expanding a polarization-entangled W state. By mixing a single photon and one of the photons in an n-photon W state at a polarization-dependent beam splitter (PDBS), we can obtain an (n+1)-photon W state after post-selection. Our scheme also opens the door for generating n-photon W states using single photons and linear optics.
3 pages, 2 figures

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/219670

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0810.2705
 http://arxiv.org/abs/0810.2705
 J. Phys. B: At. Mol. Opt. Phys. 42 (2009) 035503
 doi:10.1088/0953-4075/42/3/035503

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