Publications de l’Institut Mathématique, Nouvelle Série Vol. 101[115], pp. 37–45 (2017) 

ASYMPTOTICS OF QUANTUM CONTRACT SIGNINGVladimir Božin, Hana LoukaDepartment of Mathematics, University of Belgrade, Belgrade, SerbiaAbstract: We prove that maximal probability of cheating in quantum signing protocol of Paunković, Bouda and Matheus behaves as $O\left(1/\sqrt{N}\phantom{\rule{0.166667em}{0ex}}\right)$ for large number of qubits $N$. This confirms a conjecture that was based on numerical evidence. Keywords: quantum information theory; asymptotic behaviour Classification (MSC2000): 81P68; 41A60 Full text of the article: (for faster download, first choose a mirror)
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