Optimal local expansion of W states using linear optics and Fock states

Details Optimal local expansion of W states using linear optics and Fock states Optimal local expansion of W states using linear optics and Fock states

2010-04-05

arxiv.org/abs/1004.0608v2

Phys. Rev. A 83, 012314 (2011) [8 pages]

Physics

Quantum Physics

9 pages, 4 figures

Scientific paper

10.1103/PhysRevA.83.012314

We derive the maximum success probability of the circuits with passive linear optics for expanding an N-photon W state to an (N + n)-photon W state, by accessing only one photon of the initial W state and adding n photons in a Fock state. We show that the maximum success probability is achieved by a polarization-dependent beamsplitter and n-1 polarization-independent beamsplitters.

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