dorsal/arxiv
View SchemaQuantum secure communication scheme with W state
| Authors | Jian Wang, Quan Zhang, Chao-jing Tang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0603144 |
| URL | https://arxiv.org/abs/quant-ph/0603144 |
| DOI | 10.1088/0253-6102/48/4/013 |
| Journal | Commun. Theor. Phys., 2007, 48(4):637-640 |
Abstract
Recently, Cao et al. proposed a new quantum secure direct communication scheme using W state. In their scheme, the error rate introduced by an eavesdropper who takes intercept-resend attack, is only 8.3%. Actually, their scheme is just a quantum key distribution scheme because the communication parties first create a shared key and then encrypt the secret message using one-time pad. We then present a quantum secure communication scheme using three-qubit W state. In our scheme, the error rate is raised to 25% and it is not necessary for the present scheme to use alternative measurement or Bell basis measurement. We also show our scheme is unconditionally secure.
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"abstract": "Recently, Cao et al. proposed a new quantum secure direct communication\nscheme using W state. In their scheme, the error rate introduced by an\neavesdropper who takes intercept-resend attack, is only 8.3%. Actually, their\nscheme is just a quantum key distribution scheme because the communication\nparties first create a shared key and then encrypt the secret message using\none-time pad. We then present a quantum secure communication scheme using\nthree-qubit W state. In our scheme, the error rate is raised to 25% and it is\nnot necessary for the present scheme to use alternative measurement or Bell\nbasis measurement. We also show our scheme is unconditionally secure.",
"arxiv_id": "quant-ph/0603144",
"authors": [
"Jian Wang",
"Quan Zhang",
"Chao-jing Tang"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0253-6102/48/4/013",
"journal_ref": "Commun. Theor. Phys., 2007, 48(4):637-640",
"title": "Quantum secure communication scheme with W state",
"url": "https://arxiv.org/abs/quant-ph/0603144"
},
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