dorsal/arxiv
View SchemaThreshold quantum cryptograph based on Grover's algorithm
| Authors | Jian-Zhong Du, Su-Juan Qin, Qiao-Yan Wen, Fu-Chen Zhu |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606136 |
| URL | https://arxiv.org/abs/quant-ph/0606136 |
| DOI | 10.1016/j.physleta.2006.11.024 |
Abstract
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 orthogonal state. These properties are included in a threshold quantum protocol. The proposed threshold quantum protocol is secure based the proof that the legitimate participators can only eavesdrop 2 bits of 3 bits operation information on one two-qubit with error probability 3/8. We propose a scheme to detect the Trojan horse attack without destroying the legal qubit.
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"abstract": "Grover\u0027s operator in the two-qubit case can transform a basis into its\nconjugated basis. A permutation operator can transform a state in the two\nconjugated bases into its orthogonal state. These properties are included in a\nthreshold quantum protocol. The proposed threshold quantum protocol is secure\nbased the proof that the legitimate participators can only eavesdrop 2 bits of\n3 bits operation information on one two-qubit with error probability 3/8. We\npropose a scheme to detect the Trojan horse attack without destroying the legal\nqubit.",
"arxiv_id": "quant-ph/0606136",
"authors": [
"Jian-Zhong Du",
"Su-Juan Qin",
"Qiao-Yan Wen",
"Fu-Chen Zhu"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physleta.2006.11.024",
"title": "Threshold quantum cryptograph based on Grover\u0027s algorithm",
"url": "https://arxiv.org/abs/quant-ph/0606136"
},
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