How Quantum coin flipping works part6(Quantum Information Science) | by Monodeep Mukherjee | Sep, 2023
- Sensible Quantum Coin Flipping(arXiv)
Writer : Anna Pappa, André Chailloux, Eleni Diamanti, Iordanis Kerenidis
Summary : On this article we present for the primary time that quantum coin flipping with safety ensures which might be strictly higher than any classical protocol is feasible to implement with present know-how. Our protocol takes under consideration all features of an experimental implementation like losses, multi-photon pulses emitted by sensible photon sources, channel noise, detector darkish counts and finite quantum effectivity. We calculate the abort chance when each gamers are trustworthy, in addition to the chance of 1 participant forcing his desired end result. For channel size as much as 21 km, we obtain a dishonest chance that’s higher than in any classical protocol. Our protocol is simple to implement utilizing attenuated laser pulses, without having for entangled photons or another particular sources
2. Tight bounds for classical and quantum coin flipping(arXiv)
Writer : Esther Hänggi, Jürg Wullschleger
Summary : Coin flipping is a cryptographic primitive for which strictly higher protocols exist if the gamers are usually not solely allowed to trade classical, but in addition quantum messages. Throughout the previous few years, a number of outcomes have appeared which give a decent sure on the vary of implementable unconditionally safe coin flips, each within the classical in addition to within the quantum setting and for each weak in addition to robust coin flipping. However the image continues to be incomplete: within the quantum setting, all outcomes contemplate solely protocols with excellent correctness, and within the classical setting tight bounds for robust coin flipping are nonetheless lacking. We give a basic definition of coin flipping which unifies the notion of robust and weak coin flipping (it incorporates each of them as particular instances) and permits the trustworthy gamers to abort with a sure chance. We give tight bounds on the achievable vary of parameters each within the classical and within the quantum setting
