Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium

Details Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium

2005-10-14

arxiv.org/abs/quant-ph/0510113v3

Phys. Rev. A 73, 032327 (2006)

Physics

Quantum Physics

22 pages, 8 figures (LaTeX). In version v2 we have slightly modified our setup so as to increase the success probability of si

Scientific paper

10.1103/PhysRevA.73.032327

We propose a setup for a heralded, i.e. announced generation of a pure single-photon state given two imperfect sources whose outputs are represented by mixtures of the single-photon Fock state $\ket{1}$ with the vacuum $\ket{0}$. Our purification scheme uses beam splitters, photodetection and a two-photon-absorbing medium. The admixture of the vacuum is fully eliminated. We discuss two potential realizations of the scheme.

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