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Quantum secret sharing using pseudo-GHZ states

W. Tittel·H. Zbinden·N. Gisin
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Abstract

We present a setup for quantum secret sharing using pseudo-GHZ states based on energy-time entanglement. In opposition to true GHZ states, our states do not enable GHZ-type tests of nonlocality, however, they bare the same quantum correlations. The relatively high coincidence count rates found in our setup enable for the first time an application of a quantum communication protocoll based on more than two qubits.

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W. Tittel, H. Zbinden, N. Gisin. 1999-12-08. Quantum secret sharing using pseudo-GHZ states. https://arxiv.org/abs/quant-ph/9912035

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