Entangling photons via the double quantum Zeno effect

Details Entangling photons via the double quantum Zeno effect Entangling photons via the double quantum Zeno effect

2011-03-15

arxiv.org/abs/1103.2938v1

Physics

Quantum Physics

4 pages RevTeX, 2 figures

Scientific paper

We propose a scheme for entangling two photons via the quantum Zeno effect, which describes the inhibition of quantum evolution by frequent measurements and is based on the difference between summing amplitudes and probabilities. Our scheme requires that the one-photon loss rate $\xi_{1\gamma}$ and the two-photon absorption rate $\xi_{2\gamma}$ in some medium satisfy $\xi_{1\gamma}/\xi_{2\gamma}=\ord(P_{\rm error}^2)$, where $P_{\rm error}$ is the allowed error probability. Again based on the quantum Zeno effect, as well as coherent excitations, we present a possibility to fulfill this requirement in an otherwise linear optics set-up.

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