نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری دانشگاه صنعتی مالک اشتر
2 استادیار دانشگاه صنعتی مالک اشتر
3 استادیار دانشگاه صنعتی مالک اشتر-شاهین شهر
4 دانشیار دانشگاه صنعتی مالک اشتر
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Information theoretic bit exchange algorithms are usually evaluated by their efficiency, which is the number of successfully received bits with respect to the number of sent bits. Though, this is also the case in the quantum version of the information theory, another indicator can be derived based on it, to give a view of the costs of the algorithm. This indicator is simply the number of qubits that must be sent to obtain a desired bit string. Depending on the expected length of the output of the algorithm, this indicator reveals more detailed information about the number of qubits that must be emitted, and better estimates the implementation costs, while efficiency is an indicator that can evaluate algorithms only theoretically. We employed the idea of overselling in a transportation ticketing scheme to illustrate how to apply the binomial distribution to calculate the alternative indicator. The scheme is first reworded to fit the concepts and notations of a quantum information encoding system based on the double-slit experiment; typical results are represented. Finally, the scheme is applied to the QKD protocols such as BB84 and Six-State, for calculating the number of qubits necessary to send in order to obtain a key of the desired length, in terms of the error rate.
کلیدواژهها [English]
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