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Showing 2006 · quant-phShow all
3 papers · 2 filters
quant-ph2006★ 14 cited
Fake one-time pad cannot be used to improve the efficiency of quantum communication
Fei Gao, Su-Juan Qin, Qiao-Yan Wen +1
Two misuses of one-time pad in improving the efficiency of quantum communication are pointed out. One happens when using some message bits to encrypt others, the other exists becau…
quant-ph2006★ 3 cited
Threshold quantum cryptograph based on Grover's algorithm
Jian-Zhong Du, Su-Juan Qin, Qiao-Yan Wen +1
Grover's operator in the two-qubit case can transform a basis into its conjugated basis. A permutation operator can transform a state in the two conjugated bases into its orthogona…
quant-ph2006★ 5 cited
Entanglement Split:Comment on ``Quantum secret sharing based on reusable Greenberger-Horne-Zeilinger states as secure carriers'' [Phys. Rev. A 67, 044302 (2003)]
Jian-Zhong Du, Su-Juan Qin, Qiao-Yan Wen +1
In a recent paper [S. Bagherinezhad and V. Karimipour, Phys. Rev. A 67, 044302 (2003)], a quantum secret sharing protocol based on reusable GHZ states was proposed. However, in thi…