A Numerical Evaluation of Entanglement Sharing Protocols Using Quantum LDPC CSS Codes
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概要
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Entangled states play crucial roles in quantum information theory and its applied technologies. In various protocols such as quantum teleportation and quantum key distribution, a good entangled state shared by a pair of distant players is indispensable. In this paper, we numerically examine entanglement sharing protocols using quantum LDPC CSS codes. The sum-product decoding method enables us to detect uncorrectable errors, and thus, two protocols, Detection and Resending (DR) protocol and Non-Detection (ND) protocol are considered. In DR protocol, the players abort the protocol and repeat it if they detect the uncorrectable errors, whereas in ND protocol they do not abort the protocol. We show that DR protocol yields smaller error rate than ND protocol. In addition, it is shown that rather high reliability can be achieved by DR protocol with quantum LDPC CSS codes.
著者
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Hagiwara Manabu
Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science An
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Miyadera Takayuki
Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science An
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HAGIWARA Manabu
Research Center for Information Security (RCIS), National Institute of Advanced Industrial Science and Technology (AIST)
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YOSHIDA Masakazu
Graduate School of Science and Engineering, Chuo University
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IMAI Hideki
Graduate School of Science and Engineering, Chuo University
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- A Numerical Evaluation of Entanglement Sharing Protocols Using Quantum LDPC CSS Codes