dorsal/arxiv
View SchemaSecure and efficient decoy-state quantum key distribution with inexact pulse intensities
| Authors | X. B. Wang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609081 |
| URL | https://arxiv.org/abs/quant-ph/0609081 |
| DOI | 10.1103/PhysRevA.75.052301 |
| Journal | Phys. Rev. A 75, 052301(2007) |
Abstract
We present a general theorem for the efficient verification of the lower bound of single-photon transmittance. We show how to do decoy-state quantum key distribution efficiently with large random errors in the intensity control. In our protocol, the linear terms of fluctuation disappear and only the quadratic terms take effect. We then show the unconditional security of decoy-state method with whatever error pattern in intensities of decoy pulses and signal pulses provided that the intensity of each decoy pulse is less than $\mu$ and the intensity of each signal pulse is larger than $\mu'$.
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"abstract": "We present a general theorem for the efficient verification of the lower\nbound of single-photon transmittance. We show how to do decoy-state quantum key\ndistribution efficiently with large random errors in the intensity control. In\nour protocol, the linear terms of fluctuation disappear and only the quadratic\nterms take effect. We then show the unconditional security of decoy-state\nmethod with whatever error pattern in intensities of decoy pulses and signal\npulses provided that the intensity of each decoy pulse is less than $\\mu$ and\nthe intensity of each signal pulse is larger than $\\mu\u0027$.",
"arxiv_id": "quant-ph/0609081",
"authors": [
"X. B. Wang"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.75.052301",
"journal_ref": "Phys. Rev. A 75, 052301(2007)",
"title": "Secure and efficient decoy-state quantum key distribution with inexact pulse intensities",
"url": "https://arxiv.org/abs/quant-ph/0609081"
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