activity
19962023
most citedViolation of Bell inequalities by photons more than 10 km apart

966 citations · 18.1k across the 151 of their papers we have counts for

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Showing 1999Show all

6 papers · 1 filter

quant-ph1999★ 5 cited

Quantum secret sharing using pseudo-GHZ states

W. Tittel, H. Zbinden, N. Gisin

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 o…

quant-ph1999★ 585 cited

Quantum Cryptography using entangled photons in energy-time Bell states

W. Tittel, J. Brendel, H. Zbinden +1

We present a setup for quantum cryptography based on photon pairs in energy-time Bell states and show its feasability in a laboratory experiment. Our scheme combines the advantages…

quant-ph1999★ 125 cited

Optical Quantum Random Number Generator

André Stefanov, Nicolas Gisin, Olivier Guinnard +2

A physical random number generator based on the intrinsic randomness of quantum mechanics is described. The random events are realized by the choice of single photons between the t…

quant-ph1999★ 35 cited

Bell inequality and the locality loophole: Active versus passive switches

N. Gisin, H. Zbinden

All experimental tests of the violation of Bell's inequality suffer from some loopholes. We show that the locality loophole is not independent of the detection loophole: in experim…

quant-ph1999★ 73 cited

Fast and User-friendly Quantum Key Distribution

Gregoire Ribordy, Jean-Daniel Gautier, Nicolas Gisin +2

Some guidelines for the comparison of different quantum key distribution experiments are proposed. An improved 'plug & play' interferometric system allowing fast key exchange is th…

quant-ph1999

Quantum cryptography and long distance Bell experiments: How to control decoherence

N. Gisin, J. Brendel, J-D. Gautier +5

Several mechanisms that affect one and two photon coherence in optical fibers and their remedies are discussed. The results are illustrated on quantum cryptography experiments and…