Guang Ping He
Highly Influential Citations7
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Recently there were many quantum protocols devoted to solve the millionaire problem and private comparison problem by adding a semi-honest third party. They all require complicated quantum methods,… Continue Reading
Analyzing carefully an experimentally feasible non-entangled single qubit quantum secretsharing protocol and its modified version [Phys. Rev. Lett. 95, 230505 (2005); ibid.98, 028902 (2007)], it is… Continue Reading
For more than a decade, it was believed that unconditionally secure quantum bit commitment (QBC) is impossible. But based on a previously proposed quantum key distribution scheme using orthogonal… Continue Reading
We simplified our previously proposed quantum bit commitment (QBC) protocol based on the Mach–Zehnder interferometer, by replacing symmetric beam splitters with asymmetric ones. It eliminates the… Continue Reading
Quantum steering means that in some bipartite quantum systems, the local measurements on one side can determine the state of the other side. Here we show that in high-dimensional systems, there… Continue Reading
It was claimed that all quantum string seals are insecure [H. F. Chau, quant-ph/0602099]. However, here it will be shown that for imperfect quantum string seals, the information obtained by the… Continue Reading
In Ref. 1, a new superlinearly convergent algorithm of sequential systems of linear equations (SSLE) for nonlinear optimization problems with inequality constraints was proposed. At each iteration,… Continue Reading
Based on quantum entanglement, an all-or-nothing oblivious transfer (OT) protocol is proposed and is proven to be secure. The distinct merit of the present protocol lies in that it is not based on… Continue Reading
A Comment on the Letter by Christian Schmid et al., Phys. Rev. Lett. 95, 230505 (2005). The authors of the Letter offer a Reply.
The existence of unconditionally secure quantum bit commitment (QBC) is excluded by the Mayers-Lo-Chau no-go theorem. Here we look for the second-best: a QBC protocol that can defeat certain quantum… Continue Reading