A family of loss-tolerant quantum coin flipping protocols

Details A family of loss-tolerant quantum coin flipping protocols A family of loss-tolerant quantum coin flipping protocols

2010-06-06

arxiv.org/abs/1006.1121v1

Phys. Rev. A 82, 052307 (2010)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.82.052307

We present a family of loss-tolerant quantum strong coin flipping protocols; each protocol differing in the number of qubits employed. For a single qubit we obtain a bias of 0.4, reproducing the result of Berl\'{i}n et al. [Phys. Rev. A 80, 062321 (2009)], while for two qubits we obtain a bias of 0.3975. Numerical evidence based on semi-definite programming indicates that the bias continues to decrease as the number of qubits is increased but at a rapidly decreasing rate.

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