One-way quantum key distribution: Simple upper bound on the secret key rate
نویسندگان
چکیده
منابع مشابه
Lower and upper bounds on the secret-key rate for quantum key distribution protocols using one-way classical communication.
We investigate a general class of quantum key distribution (QKD) protocols using one-way classical communication. We show that full security can be proven by considering only collective attacks. We derive computable lower and upper bounds on the secret-key rate of those QKD protocols involving only entropies of two-qubit density operators. As an illustration of our results, we determine new bou...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2006
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.74.052301